diff --git a/debug/accuracy_tools/msprobe/pytorch/online_dispatch/dispatch.py b/debug/accuracy_tools/msprobe/pytorch/online_dispatch/dispatch.py
index 441f2b99289b3311af40601fd75ca862b271c96a..483dc2143c01f8d7c6ce12e899fe2a7541f7a76d 100644
--- a/debug/accuracy_tools/msprobe/pytorch/online_dispatch/dispatch.py
+++ b/debug/accuracy_tools/msprobe/pytorch/online_dispatch/dispatch.py
@@ -102,7 +102,10 @@ class PtdbgDispatch(TorchDispatchMode):
                 if len(json_line_data) == 0:
                     break
                 msg = json.loads(json_line_data)
-                self.all_summary[msg[0]] = msg[1]
+                try:
+                    self.all_summary[msg[0]] = msg[1]
+                except IndexError as e:
+                    logger.error(f"Please check summary json, An exception may have occurred! {e}")
             fp_handle.close()
 
         if self.debug_flag: