diff --git a/public/react/src/modules/tpm/TPMDataset.js b/public/react/src/modules/tpm/TPMDataset.js
index 55cd8c746..685324a46 100644
--- a/public/react/src/modules/tpm/TPMDataset.js
+++ b/public/react/src/modules/tpm/TPMDataset.js
@@ -473,11 +473,11 @@ class TPMDataset extends Component {
 			beforeUpload: (file) => {
 				//上传前的操作
 				// console.log('beforeUpload', file.name);
-				const isLt150M = file.size / 1024 / 1024 < 150;
-				if (!isLt150M) {
-					this.props.showNotification('文件大小必须小于150MB!');
+				const isLt300M = file.size / 1024 / 1024 <= 300;
+				if (!isLt300M) {
+					this.props.showNotification('文件大小必须小于等于300MB!');
 				}
-				return isLt150M;
+				return isLt300M;
 			},
 		};
 		// console.log("showmodelshowmodel");