diff --git a/fe/fe-core/src/main/antlr4/org/apache/doris/nereids/DorisLexer.g4 b/fe/fe-core/src/main/antlr4/org/apache/doris/nereids/DorisLexer.g4
index 256888c2fc1409..33354199e67abd 100644
--- a/fe/fe-core/src/main/antlr4/org/apache/doris/nereids/DorisLexer.g4
+++ b/fe/fe-core/src/main/antlr4/org/apache/doris/nereids/DorisLexer.g4
@@ -548,6 +548,7 @@ VALUE: 'VALUE';
 VALUES: 'VALUES';
 VARCHAR: 'VARCHAR';
 VARIABLES: 'VARIABLES';
+VARIANT: 'VARIANT';
 VERBOSE: 'VERBOSE';
 VERSION: 'VERSION';
 VIEW: 'VIEW';
diff --git a/fe/fe-core/src/main/antlr4/org/apache/doris/nereids/DorisParser.g4 b/fe/fe-core/src/main/antlr4/org/apache/doris/nereids/DorisParser.g4
index acc6eecb51aa72..0fbb0a1f960848 100644
--- a/fe/fe-core/src/main/antlr4/org/apache/doris/nereids/DorisParser.g4
+++ b/fe/fe-core/src/main/antlr4/org/apache/doris/nereids/DorisParser.g4
@@ -899,6 +899,7 @@ primitiveColType:
     | type=DECIMALV3
     | type=IPV4
     | type=IPV6
+    | type=VARIANT
     | type=ALL
     ;
 
diff --git a/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/plans/commands/info/IndexDefinition.java b/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/plans/commands/info/IndexDefinition.java
index ba56cfa4a8bba9..09c670e1b8e934 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/plans/commands/info/IndexDefinition.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/plans/commands/info/IndexDefinition.java
@@ -105,8 +105,8 @@ public void checkColumn(ColumnDefinition column, KeysType keysType,
             }
             if (!(colType.isDateLikeType() || colType.isDecimalLikeType()
                     || colType.isIntegralType() || colType.isStringLikeType()
-                    || colType.isBooleanType())) {
-                // TODO add colType.isVariantType() and colType.isAggState()
+                    || colType.isBooleanType() || colType.isVariantType())) {
+                // TODO add colType.isAggState()
                 throw new AnalysisException(colType + " is not supported in " + indexType.toString()
                         + " index. " + "invalid index: " + name);
             }
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 11bacf091c3783..28ab39e1b1c138 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
@@ -297,6 +297,9 @@ public static DataType convertPrimitiveFromStrings(List<String> types, boolean u
             case "ipv6":
                 dataType = IPv6Type.INSTANCE;
                 break;
+            case "variant":
+                dataType = VariantType.INSTANCE;
+                break;
             default:
                 throw new AnalysisException("Nereids do not support type: " + type);
         }