diff --git a/visualdl/server/visualDL b/visualdl/server/visualDL
index 8487c8adc664e3e22171539934bb19b0fb094141..2ee9d82ad2483056bdee03f183f346f39426ce32 100644
--- a/visualdl/server/visualDL
+++ b/visualdl/server/visualDL
@@ -84,8 +84,8 @@ mock_data_path = os.path.join(SERVER_DIR, "./mock_data/")
 
 log_reader = LogReader(args.logdir)
 
-graph_image_path = None
-
+# mannully put graph's image on this path also works.
+graph_image_path = os.path.join(args.logdir, 'graph.jpg')
 
 # return data
 # status, msg, data
@@ -203,7 +203,7 @@ def histogram():
 @app.route('/data/plugin/graphs/graph')
 def graph():
     # TODO(ChunweiYan) need to add a config for whether have graph.
-    if graph_image_path is None:
+    if graph_image_path is None or not os.path.isfile(graph_image_path):
         data = {'url': ''}
     else:
         data = {'url': '/graphs/image'}