diff --git a/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/functions/scalar/Repeat.java b/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/functions/scalar/Repeat.java
index 5ed3b20ddb..b85a812197 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/functions/scalar/Repeat.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/functions/scalar/Repeat.java
@@ -25,7 +25,6 @@ import org.apache.doris.nereids.trees.expressions.shape.BinaryExpression;
 import org.apache.doris.nereids.trees.expressions.visitor.ExpressionVisitor;
 import org.apache.doris.nereids.types.IntegerType;
 import org.apache.doris.nereids.types.StringType;
-import org.apache.doris.nereids.types.VarcharType;
 
 import com.google.common.base.Preconditions;
 import com.google.common.collect.ImmutableList;
@@ -39,7 +38,6 @@ public class Repeat extends ScalarFunction
         implements BinaryExpression, ExplicitlyCastableSignature, AlwaysNullable {
 
     public static final List<FunctionSignature> SIGNATURES = ImmutableList.of(
-            FunctionSignature.ret(VarcharType.SYSTEM_DEFAULT).args(VarcharType.SYSTEM_DEFAULT, IntegerType.INSTANCE),
             FunctionSignature.ret(StringType.INSTANCE).args(StringType.INSTANCE, IntegerType.INSTANCE)
     );
 
diff --git a/gensrc/script/doris_builtins_functions.py b/gensrc/script/doris_builtins_functions.py
index 0e4bd56921..91166a6dfb 100644
--- a/gensrc/script/doris_builtins_functions.py
+++ b/gensrc/script/doris_builtins_functions.py
@@ -1559,7 +1559,6 @@ visible_functions = {
         [['null_or_empty'], 'BOOLEAN', ['VARCHAR'], 'ALWAYS_NOT_NULLABLE'],
         [['not_null_or_empty'], 'BOOLEAN', ['VARCHAR'], 'ALWAYS_NOT_NULLABLE'],
         [['space'], 'VARCHAR', ['INT'], ''],
-        [['repeat'], 'VARCHAR', ['VARCHAR', 'INT'], 'ALWAYS_NULLABLE'],
         [['lpad'], 'VARCHAR', ['VARCHAR', 'INT', 'VARCHAR'], 'ALWAYS_NULLABLE'],
         [['rpad'], 'VARCHAR', ['VARCHAR', 'INT', 'VARCHAR'], 'ALWAYS_NULLABLE'],
         [['append_trailing_char_if_absent'], 'VARCHAR', ['VARCHAR', 'VARCHAR'], 'ALWAYS_NULLABLE'],
diff --git a/regression-test/data/nereids_p0/expression/fold_constant/fold_constant_by_be.out b/regression-test/data/nereids_p0/expression/fold_constant/fold_constant_by_be.out
new file mode 100644
index 0000000000..4ec7c146d7
--- /dev/null
+++ b/regression-test/data/nereids_p0/expression/fold_constant/fold_constant_by_be.out
@@ -0,0 +1,4 @@
+-- This file is automatically generated. You should know what you did if you want to edit this
+-- !sql_1 --
+80000
+
diff --git a/regression-test/suites/nereids_p0/expression/fold_constant/fold_constant_by_be.groovy b/regression-test/suites/nereids_p0/expression/fold_constant/fold_constant_by_be.groovy
index 483f2366a4..e1162c662b 100644
--- a/regression-test/suites/nereids_p0/expression/fold_constant/fold_constant_by_be.groovy
+++ b/regression-test/suites/nereids_p0/expression/fold_constant/fold_constant_by_be.groovy
@@ -31,4 +31,13 @@ suite("fold_constant_by_be") {
         '''
         result([['9999-07-31']])
     }
+
+    sql """ 
+        CREATE TABLE IF NOT EXISTS str_tb (k1 VARCHAR(10) NULL, v1 STRING NULL) 
+        UNIQUE KEY(k1) DISTRIBUTED BY HASH(k1) BUCKETS 5 properties("replication_num" = "1");
+    """
+
+    sql """ INSERT INTO str_tb VALUES (2, repeat("test1111", 10000)); """
+
+    qt_sql_1 """ select length(v1) from str_tb; """
 }
\ No newline at end of file