diff --git a/vnpy/trader/setting.py b/vnpy/trader/setting.py
index 1dd8b0ff..77f07ece 100644
--- a/vnpy/trader/setting.py
+++ b/vnpy/trader/setting.py
@@ -36,7 +36,7 @@ SETTINGS = {
 
 # Load global setting from json file.
 SETTING_FILENAME = "vt_setting.json"
-SETTINGS.update(load_json(SETTING_FILENAME))
+SETTINGS.update(load_json(SETTING_FILENAME, auto_save=False))
 
 
 def get_settings(prefix: str = ""):
diff --git a/vnpy/trader/utility.py b/vnpy/trader/utility.py
index fb7daa95..dc23c702 100644
--- a/vnpy/trader/utility.py
+++ b/vnpy/trader/utility.py
@@ -246,7 +246,7 @@ def get_icon_path(filepath: str, ico_name: str):
     return str(icon_path)
 
 
-def load_json(filename: str):
+def load_json(filename: str, auto_save : bool = True):
     """
     Load data from json file in temp path.
     """
@@ -257,7 +257,8 @@ def load_json(filename: str):
             data = json.load(f)
         return data
     else:
-        save_json(filename, {})
+        if auto_save:
+            save_json(filename, {})
         return {}