diff --git a/tests/system-test/1-insert/mutil_stage.py b/tests/system-test/1-insert/mutil_stage.py
index 880e638798..f537c0042a 100644
--- a/tests/system-test/1-insert/mutil_stage.py
+++ b/tests/system-test/1-insert/mutil_stage.py
@@ -163,6 +163,9 @@ class TDTestCase:
         cfg_list.append(current_case1)
         cfg_list.append(current_case3)
 
+        # case2 must in last of least, because use this cfg as data uniformity test
+        cfg_list.append(current_case2)
+
         return cfg_list
 
     def cfg_check(self):