diff --git a/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/functions/agg/TopN.java b/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/functions/agg/TopN.java
index 63e71cd108..5c1bf625a9 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/functions/agg/TopN.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/functions/agg/TopN.java
@@ -77,12 +77,12 @@ public class TopN extends AggregateFunction
 
     @Override
     public void checkLegalityBeforeTypeCoercion() {
-        if (!getArgument(1).isConstant() || !getArgumentType(1).isIntegerType()) {
+        if (!getArgument(1).isConstant() || !getArgumentType(1).isIntegerLikeType()) {
             throw new AnalysisException(
                     "topn requires second parameter must be a constant Integer Type: " + this.toSql());
         }
         if (arity() == 3) {
-            if (!getArgument(2).isConstant() || !getArgumentType(2).isIntegerType()) {
+            if (!getArgument(2).isConstant() || !getArgumentType(2).isIntegerLikeType()) {
                 throw new AnalysisException(
                         "topn requires the third parameter must be a constant Integer Type: " + this.toSql());
             }
diff --git a/fe/fe-core/src/main/java/org/apache/doris/nereids/types/DataType.java b/fe/fe-core/src/main/java/org/apache/doris/nereids/types/DataType.java
index c2fa66638d..44359fca4a 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/nereids/types/DataType.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/nereids/types/DataType.java
@@ -438,7 +438,7 @@ public abstract class DataType implements AbstractDataType {
     }
 
     public boolean isIntegerLikeType() {
-        return this instanceof IntegralType;
+        return this instanceof IntegralType && !(this instanceof LargeIntType);
     }
 
     public boolean isTinyIntType() {