diff --git a/tests/system-test/6-cluster/5dnode3mnodeStop.py b/tests/system-test/6-cluster/5dnode3mnodeStop.py
index 69b9c3d879..3a85207af6 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