diff --git a/paddlex/cv/models/utils/pretrain_weights.py b/paddlex/cv/models/utils/pretrain_weights.py
index 3abbdd93d80efd5eb41ead32ac321d758d080104..2446a6f9b6eb64bc49df4ad52bc899bda81f98f0 100644
--- a/paddlex/cv/models/utils/pretrain_weights.py
+++ b/paddlex/cv/models/utils/pretrain_weights.py
@@ -99,49 +99,51 @@ def get_pretrain_weights(flag, model_type, backbone, save_dir):
                 backbone = 'DetResNet50'
         assert backbone in image_pretrain, "There is not ImageNet pretrain weights for {}, you may try COCO.".format(
             backbone)
-        #        url = image_pretrain[backbone]
-        #        fname = osp.split(url)[-1].split('.')[0]
-        #        paddlex.utils.download_and_decompress(url, path=new_save_dir)
-        #        return osp.join(new_save_dir, fname)
-        try:
-            hub.download(backbone, save_path=new_save_dir)
-        except Exception as e:
-            if isinstance(e, hub.ResourceNotFoundError):
-                raise Exception("Resource for backbone {} not found".format(
-                    backbone))
-            elif isinstance(e, hub.ServerConnectionError):
-                raise Exception(
-                    "Cannot get reource for backbone {}, please check your internet connecgtion"
-                    .format(backbone))
-            else:
-                raise Exception(
-                    "Unexpected error, please make sure paddlehub >= 1.6.2")
-        return osp.join(new_save_dir, backbone)
+        url = image_pretrain[backbone]
+        fname = osp.split(url)[-1].split('.')[0]
+        paddlex.utils.download_and_decompress(url, path=new_save_dir)
+        return osp.join(new_save_dir, fname)
+#        try:
+#            hub.download(backbone, save_path=new_save_dir)
+#        except Exception as e:
+#            if isinstance(e, hub.ResourceNotFoundError):
+#                raise Exception("Resource for backbone {} not found".format(
+#                    backbone))
+#            elif isinstance(e, hub.ServerConnectionError):
+#                raise Exception(
+#                    "Cannot get reource for backbone {}, please check your internet connecgtion"
+#                    .format(backbone))
+#            else:
+#                raise Exception(
+#                    "Unexpected error, please make sure paddlehub >= 1.6.2")
+#        return osp.join(new_save_dir, backbone)
     elif flag == 'COCO':
         new_save_dir = save_dir
         if hasattr(paddlex, 'pretrain_dir'):
             new_save_dir = paddlex.pretrain_dir
-        url = coco_pretrain[backbone]
-        fname = osp.split(url)[-1].split('.')[0]
-        #        paddlex.utils.download_and_decompress(url, path=new_save_dir)
-        #        return osp.join(new_save_dir, fname)
 
         assert backbone in coco_pretrain, "There is not COCO pretrain weights for {}, you may try ImageNet.".format(
             backbone)
-        try:
-            hub.download(backbone, save_path=new_save_dir)
-        except Exception as e:
-            if isinstance(hub.ResourceNotFoundError):
-                raise Exception("Resource for backbone {} not found".format(
-                    backbone))
-            elif isinstance(hub.ServerConnectionError):
-                raise Exception(
-                    "Cannot get reource for backbone {}, please check your internet connecgtion"
-                    .format(backbone))
-            else:
-                raise Exception(
-                    "Unexpected error, please make sure paddlehub >= 1.6.2")
-        return osp.join(new_save_dir, backbone)
+
+        url = coco_pretrain[backbone]
+        fname = osp.split(url)[-1].split('.')[0]
+        paddlex.utils.download_and_decompress(url, path=new_save_dir)
+        return osp.join(new_save_dir, fname)
+
+#        try:
+#            hub.download(backbone, save_path=new_save_dir)
+#        except Exception as e:
+#            if isinstance(hub.ResourceNotFoundError):
+#                raise Exception("Resource for backbone {} not found".format(
+#                    backbone))
+#            elif isinstance(hub.ServerConnectionError):
+#                raise Exception(
+#                    "Cannot get reource for backbone {}, please check your internet connecgtion"
+#                    .format(backbone))
+#            else:
+#                raise Exception(
+#                    "Unexpected error, please make sure paddlehub >= 1.6.2")
+#        return osp.join(new_save_dir, backbone)
     else:
         raise Exception(
             "pretrain_weights need to be defined as directory path or `IMAGENET` or 'COCO' (download pretrain weights automatically)."