diff --git a/fe/fe-core/src/main/java/org/apache/doris/catalog/OlapTable.java b/fe/fe-core/src/main/java/org/apache/doris/catalog/OlapTable.java
index 0c6cbc828e4272..001f36841a7674 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/catalog/OlapTable.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/catalog/OlapTable.java
@@ -2690,6 +2690,9 @@ public boolean getEnableUniqueKeyMergeOnWrite() {
         if (tableProperty == null) {
             return false;
         }
+        if (getKeysType() != KeysType.UNIQUE_KEYS) {
+            return false;
+        }
         return tableProperty.getEnableUniqueKeyMergeOnWrite();
     }