diff --git a/PaddleClas/MANIFEST.in b/PaddleClas/MANIFEST.in
new file mode 100644
index 0000000..b0a4f6d
--- /dev/null
+++ b/PaddleClas/MANIFEST.in
@@ -0,0 +1,7 @@
+include LICENSE.txt
+include README.md
+include docs/en/whl_en.md
+recursive-include deploy/python predict_cls.py preprocess.py postprocess.py det_preprocess.py
+recursive-include deploy/utils get_image_list.py config.py logger.py predictor.py
+
+recursive-include ppcls/ *.py *.txt
\ No newline at end of file
diff --git a/PaddleClas/__init__.py b/PaddleClas/__init__.py
new file mode 100644
index 0000000..2128a6c
--- /dev/null
+++ b/PaddleClas/__init__.py
@@ -0,0 +1,17 @@
+# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+__all__ = ['PaddleClas']
+from .paddleclas import PaddleClas
+from ppcls.arch.backbone import *
diff --git a/PaddleClas/hubconf.py b/PaddleClas/hubconf.py
new file mode 100644
index 0000000..b7f7674
--- /dev/null
+++ b/PaddleClas/hubconf.py
@@ -0,0 +1,788 @@
+# Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+dependencies = ['paddle']
+
+import paddle
+import os
+import sys
+
+
+class _SysPathG(object):
+    """
+    _SysPathG used to add/clean path for sys.path. Making sure minimal pkgs dependents by skiping parent dirs.
+
+    __enter__
+        add path into sys.path
+    __exit__
+        clean user's sys.path to avoid unexpect behaviors
+    """
+
+    def __init__(self, path):
+        self.path = path
+
+    def __enter__(self, ):
+        sys.path.insert(0, self.path)
+
+    def __exit__(self, type, value, traceback):
+        _p = sys.path.pop(0)
+        assert _p == self.path, 'Make sure sys.path cleaning {} correctly.'.format(
+            self.path)
+
+
+with _SysPathG(os.path.dirname(os.path.abspath(__file__)), ):
+    import ppcls
+    import ppcls.arch.backbone as backbone
+
+    def ppclas_init():
+        if ppcls.utils.logger._logger is None:
+            ppcls.utils.logger.init_logger()
+
+    ppclas_init()
+
+    def _load_pretrained_parameters(model, name):
+        url = 'https://paddle-imagenet-models-name.bj.bcebos.com/dygraph/{}_pretrained.pdparams'.format(
+            name)
+        path = paddle.utils.download.get_weights_path_from_url(url)
+        model.set_state_dict(paddle.load(path))
+        return model
+
+    def alexnet(pretrained=False, **kwargs):
+        """
+        AlexNet
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+        Returns:
+            model: nn.Layer. Specific `AlexNet` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.AlexNet(**kwargs)
+
+        return model
+
+    def vgg11(pretrained=False, **kwargs):
+        """
+        VGG11
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+                stop_grad_layers: int=0. The parameters in blocks which index larger than `stop_grad_layers`, will be set `param.trainable=False`
+        Returns:
+            model: nn.Layer. Specific `VGG11` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.VGG11(**kwargs)
+
+        return model
+
+    def vgg13(pretrained=False, **kwargs):
+        """
+        VGG13
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+                stop_grad_layers: int=0. The parameters in blocks which index larger than `stop_grad_layers`, will be set `param.trainable=False`
+        Returns:
+            model: nn.Layer. Specific `VGG13` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.VGG13(**kwargs)
+
+        return model
+
+    def vgg16(pretrained=False, **kwargs):
+        """
+        VGG16
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+                stop_grad_layers: int=0. The parameters in blocks which index larger than `stop_grad_layers`, will be set `param.trainable=False`
+        Returns:
+            model: nn.Layer. Specific `VGG16` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.VGG16(**kwargs)
+
+        return model
+
+    def vgg19(pretrained=False, **kwargs):
+        """
+        VGG19
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+                stop_grad_layers: int=0. The parameters in blocks which index larger than `stop_grad_layers`, will be set `param.trainable=False`
+        Returns:
+            model: nn.Layer. Specific `VGG19` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.VGG19(**kwargs)
+
+        return model
+
+    def resnet18(pretrained=False, **kwargs):
+        """
+        ResNet18
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+                input_image_channel: int=3. The number of input image channels
+                data_format: str='NCHW'. The data format of batch input images, should in ('NCHW', 'NHWC')
+        Returns:
+            model: nn.Layer. Specific `ResNet18` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.ResNet18(**kwargs)
+
+        return model
+
+    def resnet34(pretrained=False, **kwargs):
+        """
+        ResNet34
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+                input_image_channel: int=3. The number of input image channels
+                data_format: str='NCHW'. The data format of batch input images, should in ('NCHW', 'NHWC')
+        Returns:
+            model: nn.Layer. Specific `ResNet34` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.ResNet34(**kwargs)
+
+        return model
+
+    def resnet50(pretrained=False, **kwargs):
+        """
+        ResNet50
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+                input_image_channel: int=3. The number of input image channels
+                data_format: str='NCHW'. The data format of batch input images, should in ('NCHW', 'NHWC')
+        Returns:
+            model: nn.Layer. Specific `ResNet50` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.ResNet50(**kwargs)
+
+        return model
+
+    def resnet101(pretrained=False, **kwargs):
+        """
+        ResNet101
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+                input_image_channel: int=3. The number of input image channels
+                data_format: str='NCHW'. The data format of batch input images, should in ('NCHW', 'NHWC')
+        Returns:
+            model: nn.Layer. Specific `ResNet101` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.ResNet101(**kwargs)
+
+        return model
+
+    def resnet152(pretrained=False, **kwargs):
+        """
+        ResNet152
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+                input_image_channel: int=3. The number of input image channels
+                data_format: str='NCHW'. The data format of batch input images, should in ('NCHW', 'NHWC')
+        Returns:
+            model: nn.Layer. Specific `ResNet152` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.ResNet152(**kwargs)
+
+        return model
+
+    def squeezenet1_0(pretrained=False, **kwargs):
+        """
+        SqueezeNet1_0
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+        Returns:
+            model: nn.Layer. Specific `SqueezeNet1_0` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.SqueezeNet1_0(**kwargs)
+
+        return model
+
+    def squeezenet1_1(pretrained=False, **kwargs):
+        """
+        SqueezeNet1_1
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+        Returns:
+            model: nn.Layer. Specific `SqueezeNet1_1` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.SqueezeNet1_1(**kwargs)
+
+        return model
+
+    def densenet121(pretrained=False, **kwargs):
+        """
+        DenseNet121
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+                dropout: float=0. Probability of setting units to zero.
+                bn_size: int=4. The number of channals per group
+        Returns:
+            model: nn.Layer. Specific `DenseNet121` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.DenseNet121(**kwargs)
+
+        return model
+
+    def densenet161(pretrained=False, **kwargs):
+        """
+        DenseNet161
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+                dropout: float=0. Probability of setting units to zero.
+                bn_size: int=4. The number of channals per group
+        Returns:
+            model: nn.Layer. Specific `DenseNet161` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.DenseNet161(**kwargs)
+
+        return model
+
+    def densenet169(pretrained=False, **kwargs):
+        """
+        DenseNet169
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+                dropout: float=0. Probability of setting units to zero.
+                bn_size: int=4. The number of channals per group
+        Returns:
+            model: nn.Layer. Specific `DenseNet169` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.DenseNet169(**kwargs)
+
+        return model
+
+    def densenet201(pretrained=False, **kwargs):
+        """
+        DenseNet201
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+                dropout: float=0. Probability of setting units to zero.
+                bn_size: int=4. The number of channals per group
+        Returns:
+            model: nn.Layer. Specific `DenseNet201` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.DenseNet201(**kwargs)
+
+        return model
+
+    def densenet264(pretrained=False, **kwargs):
+        """
+        DenseNet264
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+                dropout: float=0. Probability of setting units to zero.
+                bn_size: int=4. The number of channals per group
+        Returns:
+            model: nn.Layer. Specific `DenseNet264` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.DenseNet264(**kwargs)
+
+        return model
+
+    def inceptionv3(pretrained=False, **kwargs):
+        """
+        InceptionV3
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+        Returns:
+            model: nn.Layer. Specific `InceptionV3` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.InceptionV3(**kwargs)
+
+        return model
+
+    def inceptionv4(pretrained=False, **kwargs):
+        """
+        InceptionV4
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+        Returns:
+            model: nn.Layer. Specific `InceptionV4` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.InceptionV4(**kwargs)
+
+        return model
+
+    def googlenet(pretrained=False, **kwargs):
+        """
+        GoogLeNet
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+        Returns:
+            model: nn.Layer. Specific `GoogLeNet` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.GoogLeNet(**kwargs)
+
+        return model
+
+    def shufflenetv2_x0_25(pretrained=False, **kwargs):
+        """
+        ShuffleNetV2_x0_25
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+        Returns:
+            model: nn.Layer. Specific `ShuffleNetV2_x0_25` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.ShuffleNetV2_x0_25(**kwargs)
+
+        return model
+
+    def mobilenetv1(pretrained=False, **kwargs):
+        """
+        MobileNetV1
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+        Returns:
+            model: nn.Layer. Specific `MobileNetV1` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.MobileNetV1(**kwargs)
+
+        return model
+
+    def mobilenetv1_x0_25(pretrained=False, **kwargs):
+        """
+        MobileNetV1_x0_25
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+        Returns:
+            model: nn.Layer. Specific `MobileNetV1_x0_25` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.MobileNetV1_x0_25(**kwargs)
+
+        return model
+
+    def mobilenetv1_x0_5(pretrained=False, **kwargs):
+        """
+        MobileNetV1_x0_5
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+        Returns:
+            model: nn.Layer. Specific `MobileNetV1_x0_5` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.MobileNetV1_x0_5(**kwargs)
+
+        return model
+
+    def mobilenetv1_x0_75(pretrained=False, **kwargs):
+        """
+        MobileNetV1_x0_75
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+        Returns:
+            model: nn.Layer. Specific `MobileNetV1_x0_75` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.MobileNetV1_x0_75(**kwargs)
+
+        return model
+
+    def mobilenetv2_x0_25(pretrained=False, **kwargs):
+        """
+        MobileNetV2_x0_25
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+        Returns:
+            model: nn.Layer. Specific `MobileNetV2_x0_25` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.MobileNetV2_x0_25(**kwargs)
+
+        return model
+
+    def mobilenetv2_x0_5(pretrained=False, **kwargs):
+        """
+        MobileNetV2_x0_5
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+        Returns:
+            model: nn.Layer. Specific `MobileNetV2_x0_5` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.MobileNetV2_x0_5(**kwargs)
+
+        return model
+
+    def mobilenetv2_x0_75(pretrained=False, **kwargs):
+        """
+        MobileNetV2_x0_75
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+        Returns:
+            model: nn.Layer. Specific `MobileNetV2_x0_75` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.MobileNetV2_x0_75(**kwargs)
+
+        return model
+
+    def mobilenetv2_x1_5(pretrained=False, **kwargs):
+        """
+        MobileNetV2_x1_5
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+        Returns:
+            model: nn.Layer. Specific `MobileNetV2_x1_5` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.MobileNetV2_x1_5(**kwargs)
+
+        return model
+
+    def mobilenetv2_x2_0(pretrained=False, **kwargs):
+        """
+        MobileNetV2_x2_0
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+        Returns:
+            model: nn.Layer. Specific `MobileNetV2_x2_0` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.MobileNetV2_x2_0(**kwargs)
+
+        return model
+
+    def mobilenetv3_large_x0_35(pretrained=False, **kwargs):
+        """
+        MobileNetV3_large_x0_35
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+        Returns:
+            model: nn.Layer. Specific `MobileNetV3_large_x0_35` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.MobileNetV3_large_x0_35(**kwargs)
+
+        return model
+
+    def mobilenetv3_large_x0_5(pretrained=False, **kwargs):
+        """
+        MobileNetV3_large_x0_5
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+        Returns:
+            model: nn.Layer. Specific `MobileNetV3_large_x0_5` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.MobileNetV3_large_x0_5(**kwargs)
+
+        return model
+
+    def mobilenetv3_large_x0_75(pretrained=False, **kwargs):
+        """
+        MobileNetV3_large_x0_75
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+        Returns:
+            model: nn.Layer. Specific `MobileNetV3_large_x0_75` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.MobileNetV3_large_x0_75(**kwargs)
+
+        return model
+
+    def mobilenetv3_large_x1_0(pretrained=False, **kwargs):
+        """
+        MobileNetV3_large_x1_0
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+        Returns:
+            model: nn.Layer. Specific `MobileNetV3_large_x1_0` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.MobileNetV3_large_x1_0(**kwargs)
+
+        return model
+
+    def mobilenetv3_large_x1_25(pretrained=False, **kwargs):
+        """
+        MobileNetV3_large_x1_25
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+        Returns:
+            model: nn.Layer. Specific `MobileNetV3_large_x1_25` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.MobileNetV3_large_x1_25(**kwargs)
+
+        return model
+
+    def mobilenetv3_small_x0_35(pretrained=False, **kwargs):
+        """
+        MobileNetV3_small_x0_35
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+        Returns:
+            model: nn.Layer. Specific `MobileNetV3_small_x0_35` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.MobileNetV3_small_x0_35(**kwargs)
+
+        return model
+
+    def mobilenetv3_small_x0_5(pretrained=False, **kwargs):
+        """
+        MobileNetV3_small_x0_5
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+        Returns:
+            model: nn.Layer. Specific `MobileNetV3_small_x0_5` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.MobileNetV3_small_x0_5(**kwargs)
+
+        return model
+
+    def mobilenetv3_small_x0_75(pretrained=False, **kwargs):
+        """
+        MobileNetV3_small_x0_75
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+        Returns:
+            model: nn.Layer. Specific `MobileNetV3_small_x0_75` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.MobileNetV3_small_x0_75(**kwargs)
+
+        return model
+
+    def mobilenetv3_small_x1_0(pretrained=False, **kwargs):
+        """
+        MobileNetV3_small_x1_0
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+        Returns:
+            model: nn.Layer. Specific `MobileNetV3_small_x1_0` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.MobileNetV3_small_x1_0(**kwargs)
+
+        return model
+
+    def mobilenetv3_small_x1_25(pretrained=False, **kwargs):
+        """
+        MobileNetV3_small_x1_25
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+        Returns:
+            model: nn.Layer. Specific `MobileNetV3_small_x1_25` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.MobileNetV3_small_x1_25(**kwargs)
+
+        return model
+
+    def resnext101_32x4d(pretrained=False, **kwargs):
+        """
+        ResNeXt101_32x4d
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+        Returns:
+            model: nn.Layer. Specific `ResNeXt101_32x4d` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.ResNeXt101_32x4d(**kwargs)
+
+        return model
+
+    def resnext101_64x4d(pretrained=False, **kwargs):
+        """
+        ResNeXt101_64x4d
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+        Returns:
+            model: nn.Layer. Specific `ResNeXt101_64x4d` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.ResNeXt101_64x4d(**kwargs)
+
+        return model
+
+    def resnext152_32x4d(pretrained=False, **kwargs):
+        """
+        ResNeXt152_32x4d
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+        Returns:
+            model: nn.Layer. Specific `ResNeXt152_32x4d` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.ResNeXt152_32x4d(**kwargs)
+
+        return model
+
+    def resnext152_64x4d(pretrained=False, **kwargs):
+        """
+        ResNeXt152_64x4d
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+        Returns:
+            model: nn.Layer. Specific `ResNeXt152_64x4d` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.ResNeXt152_64x4d(**kwargs)
+
+        return model
+
+    def resnext50_32x4d(pretrained=False, **kwargs):
+        """
+        ResNeXt50_32x4d
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+        Returns:
+            model: nn.Layer. Specific `ResNeXt50_32x4d` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.ResNeXt50_32x4d(**kwargs)
+
+        return model
+
+    def resnext50_64x4d(pretrained=False, **kwargs):
+        """
+        ResNeXt50_64x4d
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+        Returns:
+            model: nn.Layer. Specific `ResNeXt50_64x4d` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.ResNeXt50_64x4d(**kwargs)
+
+        return model
+
+    def darknet53(pretrained=False, **kwargs):
+        """
+        DarkNet53
+        Args:
+            pretrained: bool=False. If `True` load pretrained parameters, `False` otherwise.
+            kwargs: 
+                class_dim: int=1000. Output dim of last fc layer.
+        Returns:
+            model: nn.Layer. Specific `ResNeXt50_64x4d` model depends on args.
+        """
+        kwargs.update({'pretrained': pretrained})
+        model = backbone.DarkNet53(**kwargs)
+
+        return model
diff --git a/PaddleClas/paddleclas.py b/PaddleClas/paddleclas.py
new file mode 100644
index 0000000..bfad193
--- /dev/null
+++ b/PaddleClas/paddleclas.py
@@ -0,0 +1,572 @@
+# Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import os
+import sys
+__dir__ = os.path.dirname(__file__)
+sys.path.append(os.path.join(__dir__, ""))
+sys.path.append(os.path.join(__dir__, "deploy"))
+
+from typing import Union, Generator
+import argparse
+import shutil
+import textwrap
+import tarfile
+import requests
+import warnings
+from functools import partial
+from difflib import SequenceMatcher
+
+import cv2
+import numpy as np
+from tqdm import tqdm
+from prettytable import PrettyTable
+
+from deploy.python.predict_cls import ClsPredictor
+from deploy.utils.get_image_list import get_image_list
+from deploy.utils import config
+
+from ppcls.arch.backbone import *
+from ppcls.utils.logger import init_logger
+
+# for building model with loading pretrained weights from backbone
+init_logger()
+
+__all__ = ["PaddleClas"]
+
+BASE_DIR = os.path.expanduser("~/.paddleclas/")
+BASE_INFERENCE_MODEL_DIR = os.path.join(BASE_DIR, "inference_model")
+BASE_IMAGES_DIR = os.path.join(BASE_DIR, "images")
+BASE_DOWNLOAD_URL = "https://paddle-imagenet-models-name.bj.bcebos.com/dygraph/inference/{}_infer.tar"
+MODEL_SERIES = {
+    "AlexNet": ["AlexNet"],
+    "DarkNet": ["DarkNet53"],
+    "DeiT": [
+        "DeiT_base_distilled_patch16_224", "DeiT_base_distilled_patch16_384",
+        "DeiT_base_patch16_224", "DeiT_base_patch16_384",
+        "DeiT_small_distilled_patch16_224", "DeiT_small_patch16_224",
+        "DeiT_tiny_distilled_patch16_224", "DeiT_tiny_patch16_224"
+    ],
+    "DenseNet": [
+        "DenseNet121", "DenseNet161", "DenseNet169", "DenseNet201",
+        "DenseNet264"
+    ],
+    "DLA": [
+        "DLA46_c", "DLA60x_c", "DLA34", "DLA60", "DLA60x", "DLA102", "DLA102x",
+        "DLA102x2", "DLA169"
+    ],
+    "DPN": ["DPN68", "DPN92", "DPN98", "DPN107", "DPN131"],
+    "EfficientNet": [
+        "EfficientNetB0", "EfficientNetB0_small", "EfficientNetB1",
+        "EfficientNetB2", "EfficientNetB3", "EfficientNetB4", "EfficientNetB5",
+        "EfficientNetB6", "EfficientNetB7"
+    ],
+    "ESNet": ["ESNet_x0_25", "ESNet_x0_5", "ESNet_x0_75", "ESNet_x1_0"],
+    "GhostNet":
+    ["GhostNet_x0_5", "GhostNet_x1_0", "GhostNet_x1_3", "GhostNet_x1_3_ssld"],
+    "HarDNet": ["HarDNet39_ds", "HarDNet68_ds", "HarDNet68", "HarDNet85"],
+    "HRNet": [
+        "HRNet_W18_C", "HRNet_W30_C", "HRNet_W32_C", "HRNet_W40_C",
+        "HRNet_W44_C", "HRNet_W48_C", "HRNet_W64_C", "HRNet_W18_C_ssld",
+        "HRNet_W48_C_ssld"
+    ],
+    "Inception": ["GoogLeNet", "InceptionV3", "InceptionV4"],
+    "MixNet": ["MixNet_S", "MixNet_M", "MixNet_L"],
+    "MobileNetV1": [
+        "MobileNetV1_x0_25", "MobileNetV1_x0_5", "MobileNetV1_x0_75",
+        "MobileNetV1", "MobileNetV1_ssld"
+    ],
+    "MobileNetV2": [
+        "MobileNetV2_x0_25", "MobileNetV2_x0_5", "MobileNetV2_x0_75",
+        "MobileNetV2", "MobileNetV2_x1_5", "MobileNetV2_x2_0",
+        "MobileNetV2_ssld"
+    ],
+    "MobileNetV3": [
+        "MobileNetV3_small_x0_35", "MobileNetV3_small_x0_5",
+        "MobileNetV3_small_x0_75", "MobileNetV3_small_x1_0",
+        "MobileNetV3_small_x1_25", "MobileNetV3_large_x0_35",
+        "MobileNetV3_large_x0_5", "MobileNetV3_large_x0_75",
+        "MobileNetV3_large_x1_0", "MobileNetV3_large_x1_25",
+        "MobileNetV3_small_x1_0_ssld", "MobileNetV3_large_x1_0_ssld"
+    ],
+    "PPLCNet": [
+        "PPLCNet_x0_25", "PPLCNet_x0_35", "PPLCNet_x0_5", "PPLCNet_x0_75",
+        "PPLCNet_x1_0", "PPLCNet_x1_5", "PPLCNet_x2_0", "PPLCNet_x2_5"
+    ],
+    "RedNet": ["RedNet26", "RedNet38", "RedNet50", "RedNet101", "RedNet152"],
+    "RegNet": ["RegNetX_4GF"],
+    "Res2Net": [
+        "Res2Net50_14w_8s", "Res2Net50_26w_4s", "Res2Net50_vd_26w_4s",
+        "Res2Net200_vd_26w_4s", "Res2Net101_vd_26w_4s",
+        "Res2Net50_vd_26w_4s_ssld", "Res2Net101_vd_26w_4s_ssld",
+        "Res2Net200_vd_26w_4s_ssld"
+    ],
+    "ResNeSt": ["ResNeSt50", "ResNeSt50_fast_1s1x64d"],
+    "ResNet": [
+        "ResNet18", "ResNet18_vd", "ResNet34", "ResNet34_vd", "ResNet50",
+        "ResNet50_vc", "ResNet50_vd", "ResNet50_vd_v2", "ResNet101",
+        "ResNet101_vd", "ResNet152", "ResNet152_vd", "ResNet200_vd",
+        "ResNet34_vd_ssld", "ResNet50_vd_ssld", "ResNet50_vd_ssld_v2",
+        "ResNet101_vd_ssld", "Fix_ResNet50_vd_ssld_v2", "ResNet50_ACNet_deploy"
+    ],
+    "ResNeXt": [
+        "ResNeXt50_32x4d", "ResNeXt50_vd_32x4d", "ResNeXt50_64x4d",
+        "ResNeXt50_vd_64x4d", "ResNeXt101_32x4d", "ResNeXt101_vd_32x4d",
+        "ResNeXt101_32x8d_wsl", "ResNeXt101_32x16d_wsl",
+        "ResNeXt101_32x32d_wsl", "ResNeXt101_32x48d_wsl",
+        "Fix_ResNeXt101_32x48d_wsl", "ResNeXt101_64x4d", "ResNeXt101_vd_64x4d",
+        "ResNeXt152_32x4d", "ResNeXt152_vd_32x4d", "ResNeXt152_64x4d",
+        "ResNeXt152_vd_64x4d"
+    ],
+    "ReXNet":
+    ["ReXNet_1_0", "ReXNet_1_3", "ReXNet_1_5", "ReXNet_2_0", "ReXNet_3_0"],
+    "SENet": [
+        "SENet154_vd", "SE_HRNet_W64_C_ssld", "SE_ResNet18_vd",
+        "SE_ResNet34_vd", "SE_ResNet50_vd", "SE_ResNeXt50_32x4d",
+        "SE_ResNeXt50_vd_32x4d", "SE_ResNeXt101_32x4d"
+    ],
+    "ShuffleNetV2": [
+        "ShuffleNetV2_swish", "ShuffleNetV2_x0_25", "ShuffleNetV2_x0_33",
+        "ShuffleNetV2_x0_5", "ShuffleNetV2_x1_0", "ShuffleNetV2_x1_5",
+        "ShuffleNetV2_x2_0"
+    ],
+    "SqueezeNet": ["SqueezeNet1_0", "SqueezeNet1_1"],
+    "SwinTransformer": [
+        "SwinTransformer_large_patch4_window7_224_22kto1k",
+        "SwinTransformer_large_patch4_window12_384_22kto1k",
+        "SwinTransformer_base_patch4_window7_224_22kto1k",
+        "SwinTransformer_base_patch4_window12_384_22kto1k",
+        "SwinTransformer_base_patch4_window12_384",
+        "SwinTransformer_base_patch4_window7_224",
+        "SwinTransformer_small_patch4_window7_224",
+        "SwinTransformer_tiny_patch4_window7_224"
+    ],
+    "Twins": [
+        "pcpvt_small", "pcpvt_base", "pcpvt_large", "alt_gvt_small",
+        "alt_gvt_base", "alt_gvt_large"
+    ],
+    "VGG": ["VGG11", "VGG13", "VGG16", "VGG19"],
+    "VisionTransformer": [
+        "ViT_base_patch16_224", "ViT_base_patch16_384", "ViT_base_patch32_384",
+        "ViT_large_patch16_224", "ViT_large_patch16_384",
+        "ViT_large_patch32_384", "ViT_small_patch16_224"
+    ],
+    "Xception": [
+        "Xception41", "Xception41_deeplab", "Xception65", "Xception65_deeplab",
+        "Xception71"
+    ]
+}
+
+
+class ImageTypeError(Exception):
+    """ImageTypeError.
+    """
+
+    def __init__(self, message=""):
+        super().__init__(message)
+
+
+class InputModelError(Exception):
+    """InputModelError.
+    """
+
+    def __init__(self, message=""):
+        super().__init__(message)
+
+
+def init_config(model_name,
+                inference_model_dir,
+                use_gpu=True,
+                batch_size=1,
+                topk=5,
+                **kwargs):
+    imagenet1k_map_path = os.path.join(
+        os.path.abspath(__dir__), "ppcls/utils/imagenet1k_label_list.txt")
+    cfg = {
+        "Global": {
+            "infer_imgs": kwargs["infer_imgs"]
+            if "infer_imgs" in kwargs else False,
+            "model_name": model_name,
+            "inference_model_dir": inference_model_dir,
+            "batch_size": batch_size,
+            "use_gpu": use_gpu,
+            "enable_mkldnn": kwargs["enable_mkldnn"]
+            if "enable_mkldnn" in kwargs else False,
+            "cpu_num_threads": kwargs["cpu_num_threads"]
+            if "cpu_num_threads" in kwargs else 1,
+            "enable_benchmark": False,
+            "use_fp16": kwargs["use_fp16"] if "use_fp16" in kwargs else False,
+            "ir_optim": True,
+            "use_tensorrt": kwargs["use_tensorrt"]
+            if "use_tensorrt" in kwargs else False,
+            "gpu_mem": kwargs["gpu_mem"] if "gpu_mem" in kwargs else 8000,
+            "enable_profile": False
+        },
+        "PreProcess": {
+            "transform_ops": [{
+                "ResizeImage": {
+                    "resize_short": kwargs["resize_short"]
+                    if "resize_short" in kwargs else 256
+                }
+            }, {
+                "CropImage": {
+                    "size": kwargs["crop_size"]
+                    if "crop_size" in kwargs else 224
+                }
+            }, {
+                "NormalizeImage": {
+                    "scale": 0.00392157,
+                    "mean": [0.485, 0.456, 0.406],
+                    "std": [0.229, 0.224, 0.225],
+                    "order": ''
+                }
+            }, {
+                "ToCHWImage": None
+            }]
+        },
+        "PostProcess": {
+            "main_indicator": "Topk",
+            "Topk": {
+                "topk": topk,
+                "class_id_map_file": imagenet1k_map_path
+            }
+        }
+    }
+    if "save_dir" in kwargs:
+        if kwargs["save_dir"] is not None:
+            cfg["PostProcess"]["SavePreLabel"] = {
+                "save_dir": kwargs["save_dir"]
+            }
+    if "class_id_map_file" in kwargs:
+        if kwargs["class_id_map_file"] is not None:
+            cfg["PostProcess"]["Topk"]["class_id_map_file"] = kwargs[
+                "class_id_map_file"]
+
+    cfg = config.AttrDict(cfg)
+    config.create_attr_dict(cfg)
+    return cfg
+
+
+def args_cfg():
+    def str2bool(v):
+        return v.lower() in ("true", "t", "1")
+
+    parser = argparse.ArgumentParser()
+    parser.add_argument(
+        "--infer_imgs",
+        type=str,
+        required=True,
+        help="The image(s) to be predicted.")
+    parser.add_argument(
+        "--model_name", type=str, help="The model name to be used.")
+    parser.add_argument(
+        "--inference_model_dir",
+        type=str,
+        help="The directory of model files. Valid when model_name not specifed."
+    )
+    parser.add_argument(
+        "--use_gpu", type=str, default=True, help="Whether use GPU.")
+    parser.add_argument("--gpu_mem", type=int, default=8000, help="")
+    parser.add_argument(
+        "--enable_mkldnn",
+        type=str2bool,
+        default=False,
+        help="Whether use MKLDNN. Valid when use_gpu is False")
+    parser.add_argument("--cpu_num_threads", type=int, default=1, help="")
+    parser.add_argument(
+        "--use_tensorrt", type=str2bool, default=False, help="")
+    parser.add_argument("--use_fp16", type=str2bool, default=False, help="")
+    parser.add_argument(
+        "--batch_size", type=int, default=1, help="Batch size. Default by 1.")
+    parser.add_argument(
+        "--topk",
+        type=int,
+        default=5,
+        help="Return topk score(s) and corresponding results. Default by 5.")
+    parser.add_argument(
+        "--class_id_map_file",
+        type=str,
+        help="The path of file that map class_id and label.")
+    parser.add_argument(
+        "--save_dir",
+        type=str,
+        help="The directory to save prediction results as pre-label.")
+    parser.add_argument(
+        "--resize_short",
+        type=int,
+        default=256,
+        help="Resize according to short size.")
+    parser.add_argument(
+        "--crop_size", type=int, default=224, help="Centor crop size.")
+
+    args = parser.parse_args()
+    return vars(args)
+
+
+def print_info():
+    """Print list of supported models in formatted.
+    """
+    table = PrettyTable(["Series", "Name"])
+    try:
+        sz = os.get_terminal_size()
+        width = sz.columns - 30 if sz.columns > 50 else 10
+    except OSError:
+        width = 100
+    for series in MODEL_SERIES:
+        names = textwrap.fill("  ".join(MODEL_SERIES[series]), width=width)
+        table.add_row([series, names])
+    width = len(str(table).split("\n")[0])
+    print("{}".format("-" * width))
+    print("Models supported by PaddleClas".center(width))
+    print(table)
+    print("Powered by PaddlePaddle!".rjust(width))
+    print("{}".format("-" * width))
+
+
+def get_model_names():
+    """Get the model names list.
+    """
+    model_names = []
+    for series in MODEL_SERIES:
+        model_names += (MODEL_SERIES[series])
+    return model_names
+
+
+def similar_architectures(name="", names=[], thresh=0.1, topk=10):
+    """Find the most similar topk model names.
+    """
+    scores = []
+    for idx, n in enumerate(names):
+        if n.startswith("__"):
+            continue
+        score = SequenceMatcher(None, n.lower(), name.lower()).quick_ratio()
+        if score > thresh:
+            scores.append((idx, score))
+    scores.sort(key=lambda x: x[1], reverse=True)
+    similar_names = [names[s[0]] for s in scores[:min(topk, len(scores))]]
+    return similar_names
+
+
+def download_with_progressbar(url, save_path):
+    """Download from url with progressbar.
+    """
+    if os.path.isfile(save_path):
+        os.remove(save_path)
+    response = requests.get(url, stream=True)
+    total_size_in_bytes = int(response.headers.get("content-length", 0))
+    block_size = 1024  # 1 Kibibyte
+    progress_bar = tqdm(total=total_size_in_bytes, unit="iB", unit_scale=True)
+    with open(save_path, "wb") as file:
+        for data in response.iter_content(block_size):
+            progress_bar.update(len(data))
+            file.write(data)
+    progress_bar.close()
+    if total_size_in_bytes == 0 or progress_bar.n != total_size_in_bytes or not os.path.isfile(
+            save_path):
+        raise Exception(
+            f"Something went wrong while downloading file from {url}")
+
+
+def check_model_file(model_name):
+    """Check the model files exist and download and untar when no exist.
+    """
+    storage_directory = partial(os.path.join, BASE_INFERENCE_MODEL_DIR,
+                                model_name)
+    url = BASE_DOWNLOAD_URL.format(model_name)
+
+    tar_file_name_list = [
+        "inference.pdiparams", "inference.pdiparams.info", "inference.pdmodel"
+    ]
+    model_file_path = storage_directory("inference.pdmodel")
+    params_file_path = storage_directory("inference.pdiparams")
+    if not os.path.exists(model_file_path) or not os.path.exists(
+            params_file_path):
+        tmp_path = storage_directory(url.split("/")[-1])
+        print(f"download {url} to {tmp_path}")
+        os.makedirs(storage_directory(), exist_ok=True)
+        download_with_progressbar(url, tmp_path)
+        with tarfile.open(tmp_path, "r") as tarObj:
+            for member in tarObj.getmembers():
+                filename = None
+                for tar_file_name in tar_file_name_list:
+                    if tar_file_name in member.name:
+                        filename = tar_file_name
+                if filename is None:
+                    continue
+                file = tarObj.extractfile(member)
+                with open(storage_directory(filename), "wb") as f:
+                    f.write(file.read())
+        os.remove(tmp_path)
+    if not os.path.exists(model_file_path) or not os.path.exists(
+            params_file_path):
+        raise Exception(
+            f"Something went wrong while praparing the model[{model_name}] files!"
+        )
+
+    return storage_directory()
+
+
+class PaddleClas(object):
+    """PaddleClas.
+    """
+
+    print_info()
+
+    def __init__(self,
+                 model_name: str=None,
+                 inference_model_dir: str=None,
+                 use_gpu: bool=True,
+                 batch_size: int=1,
+                 topk: int=5,
+                 **kwargs):
+        """Init PaddleClas with config.
+
+        Args:
+            model_name (str, optional): The model name supported by PaddleClas. If specified, override config. Defaults to None.
+            inference_model_dir (str, optional): The directory that contained model file and params file to be used. If specified, override config. Defaults to None.
+            use_gpu (bool, optional): Whether use GPU. If specified, override config. Defaults to True.
+            batch_size (int, optional): The batch size to pridict. If specified, override config. Defaults to 1.
+            topk (int, optional): Return the top k prediction results with the highest score. Defaults to 5.
+        """
+        super().__init__()
+        self._config = init_config(model_name, inference_model_dir, use_gpu,
+                                   batch_size, topk, **kwargs)
+        self._check_input_model()
+        self.cls_predictor = ClsPredictor(self._config)
+
+    def get_config(self):
+        """Get the config.
+        """
+        return self._config
+
+    def _check_input_model(self):
+        """Check input model name or model files.
+        """
+        candidate_model_names = get_model_names()
+        input_model_name = self._config.Global.get("model_name", None)
+        inference_model_dir = self._config.Global.get("inference_model_dir",
+                                                      None)
+        if input_model_name is not None:
+            similar_names = similar_architectures(input_model_name,
+                                                  candidate_model_names)
+            similar_names_str = ", ".join(similar_names)
+            if input_model_name not in candidate_model_names:
+                err = f"{input_model_name} is not provided by PaddleClas. \nMaybe you want: [{similar_names_str}]. \nIf you want to use your own model, please specify inference_model_dir!"
+                raise InputModelError(err)
+            self._config.Global.inference_model_dir = check_model_file(
+                input_model_name)
+            return
+        elif inference_model_dir is not None:
+            model_file_path = os.path.join(inference_model_dir,
+                                           "inference.pdmodel")
+            params_file_path = os.path.join(inference_model_dir,
+                                            "inference.pdiparams")
+            if not os.path.isfile(model_file_path) or not os.path.isfile(
+                    params_file_path):
+                err = f"There is no model file or params file in this directory: {inference_model_dir}"
+                raise InputModelError(err)
+            return
+        else:
+            err = f"Please specify the model name supported by PaddleClas or directory contained model files(inference.pdmodel, inference.pdiparams)."
+            raise InputModelError(err)
+        return
+
+    def predict(self, input_data: Union[str, np.array],
+                print_pred: bool=False) -> Generator[list, None, None]:
+        """Predict input_data.
+
+        Args:
+            input_data (Union[str, np.array]):
+                When the type is str, it is the path of image, or the directory containing images, or the URL of image from Internet.
+                When the type is np.array, it is the image data whose channel order is RGB.
+            print_pred (bool, optional): Whether print the prediction result. Defaults to False.
+
+        Raises:
+            ImageTypeError: Illegal input_data.
+
+        Yields:
+            Generator[list, None, None]:
+                The prediction result(s) of input_data by batch_size. For every one image,
+                prediction result(s) is zipped as a dict, that includs topk "class_ids", "scores" and "label_names".
+                The format of batch prediction result(s) is as follow: [{"class_ids": [...], "scores": [...], "label_names": [...]}, ...]
+        """
+
+        if isinstance(input_data, np.ndarray):
+            yield self.cls_predictor.predict(input_data)
+        elif isinstance(input_data, str):
+            if input_data.startswith("http") or input_data.startswith("https"):
+                image_storage_dir = partial(os.path.join, BASE_IMAGES_DIR)
+                if not os.path.exists(image_storage_dir()):
+                    os.makedirs(image_storage_dir())
+                image_save_path = image_storage_dir("tmp.jpg")
+                download_with_progressbar(input_data, image_save_path)
+                input_data = image_save_path
+                warnings.warn(
+                    f"Image to be predicted from Internet: {input_data}, has been saved to: {image_save_path}"
+                )
+            image_list = get_image_list(input_data)
+
+            batch_size = self._config.Global.get("batch_size", 1)
+            topk = self._config.PostProcess.Topk.get('topk', 1)
+
+            img_list = []
+            img_path_list = []
+            cnt = 0
+            for idx, img_path in enumerate(image_list):
+                img = cv2.imread(img_path)
+                if img is None:
+                    warnings.warn(
+                        f"Image file failed to read and has been skipped. The path: {img_path}"
+                    )
+                    continue
+                img = img[:, :, ::-1]
+                img_list.append(img)
+                img_path_list.append(img_path)
+                cnt += 1
+
+                if cnt % batch_size == 0 or (idx + 1) == len(image_list):
+                    preds = self.cls_predictor.predict(img_list)
+
+                    if print_pred and preds:
+                        for idx, pred in enumerate(preds):
+                            pred_str = ", ".join(
+                                [f"{k}: {pred[k]}" for k in pred])
+                            print(
+                                f"filename: {img_path_list[idx]}, top-{topk}, {pred_str}"
+                            )
+
+                    img_list = []
+                    img_path_list = []
+                    yield preds
+        else:
+            err = "Please input legal image! The type of image supported by PaddleClas are: NumPy.ndarray and string of local path or Ineternet URL"
+            raise ImageTypeError(err)
+        return
+
+
+# for CLI
+def main():
+    """Function API used for commad line.
+    """
+    cfg = args_cfg()
+    clas_engine = PaddleClas(**cfg)
+    res = clas_engine.predict(cfg["infer_imgs"], print_pred=True)
+    for _ in res:
+        pass
+    print("Predict complete!")
+    return
+
+
+if __name__ == "__main__":
+    main()
diff --git a/PaddleClas/requirements.txt b/PaddleClas/requirements.txt
new file mode 100644
index 0000000..79f548c
--- /dev/null
+++ b/PaddleClas/requirements.txt
@@ -0,0 +1,11 @@
+prettytable
+ujson
+opencv-python==4.4.0.46
+pillow
+tqdm
+PyYAML
+visualdl >= 2.2.0
+scipy
+scikit-learn==0.23.2
+gast==0.3.3
+faiss-cpu==1.7.1.post2
diff --git a/PaddleClas/setup.py b/PaddleClas/setup.py
new file mode 100644
index 0000000..57045d3
--- /dev/null
+++ b/PaddleClas/setup.py
@@ -0,0 +1,60 @@
+# Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from io import open
+from setuptools import setup
+
+with open('requirements.txt', encoding="utf-8-sig") as f:
+    requirements = f.readlines()
+
+
+def readme():
+    with open(
+            'docs/en/inference_deployment/whl_deploy_en.md',
+            encoding="utf-8-sig") as f:
+        README = f.read()
+    return README
+
+
+setup(
+    name='paddleclas',
+    packages=['paddleclas'],
+    package_dir={'paddleclas': ''},
+    include_package_data=True,
+    entry_points={
+        "console_scripts": ["paddleclas= paddleclas.paddleclas:main"]
+    },
+    version='0.0.0',
+    install_requires=requirements,
+    license='Apache License 2.0',
+    description='Awesome Image Classification toolkits based on PaddlePaddle ',
+    long_description=readme(),
+    long_description_content_type='text/markdown',
+    url='https://github.com/PaddlePaddle/PaddleClas',
+    download_url='https://github.com/PaddlePaddle/PaddleClas.git',
+    keywords=[
+        'A treasure chest for image classification powered by PaddlePaddle.'
+    ],
+    classifiers=[
+        'Intended Audience :: Developers',
+        'Operating System :: OS Independent',
+        'Natural Language :: Chinese (Simplified)',
+        'Programming Language :: Python :: 3',
+        'Programming Language :: Python :: 3.2',
+        'Programming Language :: Python :: 3.3',
+        'Programming Language :: Python :: 3.4',
+        'Programming Language :: Python :: 3.5',
+        'Programming Language :: Python :: 3.6',
+        'Programming Language :: Python :: 3.7', 'Topic :: Utilities'
+    ], )