diff --git a/doc/MODEL_ZOO.md b/doc/MODEL_ZOO.md
new file mode 100644
index 000000000..0baa62106
--- /dev/null
+++ b/doc/MODEL_ZOO.md
@@ -0,0 +1,2 @@
+## MODEL ZOO
+Coming Soon...
\ No newline at end of file
diff --git a/mmskeleton/utils/checkpoint.py b/mmskeleton/utils/checkpoint.py
index d131ce848..94c63524a 100644
--- a/mmskeleton/utils/checkpoint.py
+++ b/mmskeleton/utils/checkpoint.py
@@ -1,24 +1,23 @@
 from mmcv.runner import load_checkpoint as mmcv_load_checkpoint
 from mmcv.runner.checkpoint import load_url_dist
+import urllib
 
 mmskeleton_model_urls = {
     'st_gcn/kinetics-skeleton': "https://open-mmlab.s3.ap-northeast-2.amazonaws.com/mmskeleton/models/st-gcn/st_gcn.kinetics-6fa43f73.pth",
     'st_gcn/ntu-xsub': "https://open-mmlab.s3.ap-northeast-2.amazonaws.com/mmskeleton/models/st-gcn/st_gcn.ntu-xsub-300b57d4.pth",
     'st_gcn/ntu-xview': "https://open-mmlab.s3.ap-northeast-2.amazonaws.com/mmskeleton/models/st-gcn/st_gcn.ntu-xview-9ba67746.pth",
     'mmdet/htc_dconv_c3-c5_mstrain_400_1400_x101_64x4d_fpn_20e': 'https://open-mmlab.s3.ap-northeast-2.amazonaws.com/mmskeleton/models/mmdet/htc_dconv_c3-c5_mstrain_400_1400_x101_64x4d_fpn_20e_20190408-0e50669c.pth',
-    'pose_estimation/pose_hrnet_w32_256x192': 'https://open-mmlab.s3.ap-northeast-2.amazonaws.com/mmskeleton/models/pose_estimation/pose_hrnet_w32_256x192-76ea353b.pth',
+    'pose_estimation/pose_hrnet_w32_256x192': 'https://1open-mmlab.s3.ap-northeast-2.amazonaws.com/mmskeleton/models/pose_estimation/pose_hrnet_w32_256x192-76ea353b.pth',
     'mmdet/cascade_rcnn_r50_fpn_20e': 'https://s3.ap-northeast-2.amazonaws.com/open-mmlab/mmdetection/models/cascade_rcnn_r50_fpn_20e_20181123-db483a09.pth',
 }  # yapf: disable
 
 
 def load_checkpoint(model, filename, *args, **kwargs):
-    if filename.startswith('mmskeleton://'):
-        model_name = filename[13:]
-        model_url = (mmskeleton_model_urls[model_name])
-        checkpoint = mmcv_load_checkpoint(model, model_url, *args, **kwargs)
-        return checkpoint
-    else:
+    try:
+        filename = get_mmskeleton_url(filename)
         return mmcv_load_checkpoint(model, filename, *args, **kwargs)
+    except (urllib.error.HTTPError, urllib.error.URLError) as e:
+        raise Exception(url_error_message.format(filename)) from e
 
 
 def get_mmskeleton_url(filename):
@@ -30,7 +29,18 @@ def get_mmskeleton_url(filename):
 
 
 def cache_checkpoint(filename):
-    if filename.startswith('mmskeleton://'):
+    try:
+        filename = get_mmskeleton_url(filename)
         load_url_dist(get_mmskeleton_url(filename))
-    elif filename.startswith(('http://', 'https://')):
-        load_url_dist(filename)
\ No newline at end of file
+    except (urllib.error.HTTPError, urllib.error.URLError) as e:
+        raise Exception(url_error_message.format(filename)) from e
+
+
+url_error_message = """
+
+==================================================
+MMSkeleton fail to load checkpoint from url: 
+    {}
+Please check your network connection. Or manually download checkpoints according to the instructor:
+    https://github.com/open-mmlab/mmskeleton/blob/master/doc/MODEL_ZOO.md
+"""
\ No newline at end of file
diff --git a/setup.py b/setup.py
index 381dbbb88..ce849681f 100644
--- a/setup.py
+++ b/setup.py
@@ -78,7 +78,9 @@ def write_version_py():
     MMSKELETON_HOME = os.path.dirname(os.path.realpath(__file__))
 
     with open(version_file, 'w') as f:
-        f.write(content.format(time.asctime(), VERSION, SHORT_VERSION, MMSKELETON_HOME))
+        f.write(
+            content.format(time.asctime(), VERSION, SHORT_VERSION,
+                           MMSKELETON_HOME))
 
 
 def get_version():