diff --git a/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/Cast.java b/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/Cast.java
index 124ed589d4..9122f0f4ad 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/Cast.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/Cast.java
@@ -81,6 +81,8 @@ public class Cast extends Expression implements UnaryExpression {
             return true;
         } else if (childDataType.isJsonType() || targetType.isJsonType()) {
             return true;
+        } else if (childDataType.isVariantType() || targetType.isVariantType()) {
+            return true;
         } else {
             return child().nullable();
         }
diff --git a/regression-test/suites/query_p0/cast/test_cast.groovy b/regression-test/suites/query_p0/cast/test_cast.groovy
index 2fe4d53eb8..dae669e296 100644
--- a/regression-test/suites/query_p0/cast/test_cast.groovy
+++ b/regression-test/suites/query_p0/cast/test_cast.groovy
@@ -150,7 +150,8 @@ suite('test_cast', "arrow_flight_sql") {
     sql """
         CREATE TABLE IF NOT EXISTS test_json (
           id INT not null,
-          j JSON not null
+          j JSON not null,
+          v variant not null
         )
         DUPLICATE KEY(id)
         DISTRIBUTED BY HASH(id) BUCKETS 10
@@ -158,9 +159,10 @@ suite('test_cast', "arrow_flight_sql") {
     """
 
     sql """
-        INSERT INTO test_json VALUES(26, '{"k1":"v1", "k2": 200}');
+        INSERT INTO test_json VALUES(26, '{"k1":"v1", "k2": 200}', '[\"asd]');
     """
     sql "sync"
     sql "Select cast(j as int) from test_json"
+    sql "select cast(v as int) from test_json"
     sql "DROP TABLE IF EXISTS test_json"
 }