diff --git a/script/gs_upgradectl b/script/gs_upgradectl
index 33f9d75e43b5f50d2431cfc8e0ede892012b0eb0..c4bcd9a4b5ce28d9cee5880156981685f2c37228 100644
--- a/script/gs_upgradectl
+++ b/script/gs_upgradectl
@@ -327,6 +327,9 @@ if __name__ == '__main__':
         REPEAT = False
         upgrade = Upgrade()
         upgrade.parseCommandLine()
+        if (self.is_grey_upgrade == False) {
+            GaussLog.exitWithError(ErrorCode.GAUSS_529["GAUSS_52944"])    
+        }
         upgrade.checkParameter()
 
         # set action flag file
diff --git a/script/gspylib/common/ErrorCode.py b/script/gspylib/common/ErrorCode.py
index 222292fd53400b17cfa435a7327d323414163cbb..45ea4e1eb169ce2f5b70a223ce659c2d302b2b8b 100644
--- a/script/gspylib/common/ErrorCode.py
+++ b/script/gspylib/common/ErrorCode.py
@@ -910,7 +910,8 @@ class ErrorCode():
         'GAUSS_52940': "[GAUSS-52940] : Invalid node type:%s.",
         'GAUSS_52941': "[GAUSS-52941] : Invalid node role:%s.",
         'GAUSS_52942': "[GAUSS-52942] : No such key to check guc value.",
-        'GAUSS_52943': "[GAUSS-52943] : Invalid instance type:%s."
+        'GAUSS_52943': "[GAUSS-52943] : Invalid instance type:%s.",
+        'GAUSS_52944': "[GAUSS-52944] : Must use --grey option."
 
     }