diff --git a/blog/templatetags/blog_tags.py b/blog/templatetags/blog_tags.py
index cbbcf65..f6d1f8b 100644
--- a/blog/templatetags/blog_tags.py
+++ b/blog/templatetags/blog_tags.py
@@ -25,7 +25,8 @@ import hashlib
 import urllib
 from comments.models import Comment
 from DjangoBlog.utils import cache_decorator, logger
-from DjangoBlog.utils import cache
+from django.contrib.auth import get_user_model
+from oauth.models import OAuthUser
 
 register = template.Library()
 
@@ -237,6 +238,11 @@ def load_article_detail(article, isindex, user):
 @register.filter
 def gravatar_url(email, size=40):
     """获得gravatar头像"""
+    usermodels = OAuthUser.objects.filter(email=email)
+    if usermodels:
+        o = list(filter(lambda x: x.picture is not None, usermodels))
+        if o:
+            return o[0].picture
     email = email.encode('utf-8')
 
     default = "https://resource.lylinux.net/image/2017/03/26/120117.jpg".encode('utf-8')
diff --git a/blog/tests.py b/blog/tests.py
index 1e88e98..91b76f5 100644
--- a/blog/tests.py
+++ b/blog/tests.py
@@ -91,6 +91,9 @@ class ArticleTest(TestCase):
         SpiderNotify.baidu_notify([article.get_full_url()])
         rsp = self.client.get('/refresh/')
         self.assertEqual(rsp.status_code, 200)
+        from blog.templatetags.blog_tags import gravatar_url, gravatar
+        u = gravatar_url('liangliangyy@gmail.com')
+        u = gravatar('liangliangyy@gmail.com')
 
     def test_validate_feed(self):
         user = BlogUser.objects.get_or_create(email="liangliangyy12@gmail.com", username="liangliangyy")[0]