diff --git a/tests/system-test/6-cluster/5dnode3mnodeStop.py b/tests/system-test/6-cluster/5dnode3mnodeStop.py
index 69b9c3d879bd4e426bdff4c53215ad206b5b39a3..3a85207af6c2e01fdb4795f66a2ffec0eb5c639d 100644
--- a/tests/system-test/6-cluster/5dnode3mnodeStop.py
+++ b/tests/system-test/6-cluster/5dnode3mnodeStop.py
@@ -227,6 +227,7 @@ class TDTestCase:
 
         # fisr add three mnodes;
         tdSql.execute("create mnode on dnode 2")
+        time.sleep(10)
         tdSql.execute("create mnode on dnode 3")
 
         # fisrt check statut ready