diff --git a/fe/fe-core/src/main/java/org/apache/doris/analysis/ColumnDef.java b/fe/fe-core/src/main/java/org/apache/doris/analysis/ColumnDef.java
index 788b5e59f1..5a944aa7b2 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/analysis/ColumnDef.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/analysis/ColumnDef.java
@@ -265,6 +265,10 @@ public class ColumnDef {
         }
 
         if (type.getPrimitiveType() == PrimitiveType.ARRAY) {
+            if (isKey()) {
+                throw new AnalysisException("Array can only be used in the non-key column of"
+                    + " the duplicate table at present.");
+            }
             if (defaultValue.isSet && defaultValue != DefaultValue.NULL_DEFAULT_VALUE) {
                 throw new AnalysisException("Array type column default value only support null");
             }