diff --git a/internal/dms/pkg/constant/const.go b/internal/dms/pkg/constant/const.go
index f39fe9a9..18741600 100644
--- a/internal/dms/pkg/constant/const.go
+++ b/internal/dms/pkg/constant/const.go
@@ -248,8 +248,10 @@ func ParseDBType(s string) (DBType, error) {
 		return DBTypeHive, nil
 	case "DM":
 		return DBTypeDM, nil
-	case "GaussDB for MySQL":
+	case "GaussDB":
 		return DBTypeGaussDB, nil
+	case "GaussDB for MySQL":
+		return DBTypeGaussDBForMySQL, nil
 	case "HANA":
 		return DBTypeHANA, nil
 	case "PolarDB For MySQL":
@@ -263,42 +265,43 @@ func ParseDBType(s string) (DBType, error) {
 }
 
 const (
-	DBTypeMySQL          DBType = "MySQL"
-	DBTypePostgreSQL     DBType = "PostgreSQL"
-	DBTypeTiDB           DBType = "TiDB"
-	DBTypeSQLServer      DBType = "SQL Server"
-	DBTypeOracle         DBType = "Oracle"
-	DBTypeDB2            DBType = "DB2"
-	DBTypeOceanBaseMySQL DBType = "OceanBase For MySQL"
-	DBTypeTDSQLForInnoDB DBType = "TDSQL For InnoDB"
-	DBTypeGoldenDB       DBType = "GoldenDB"
-	DBTypeTBase          DBType = "TBase"
-	DBTypeHive           DBType = "Hive"
-	DBTypeDM             DBType = "达梦(DM)"
-	DBTypeGaussDB        DBType = "GaussDB / openGauss"
-	DBTypeHANA              DBType = "HANA"
-	DBTypePolarDBForMySQL   DBType = "PolarDB For MySQL"
-	DBTypeOceanBaseOracle   DBType = "OceanBase For Oracle"
+	DBTypeMySQL           DBType = "MySQL"
+	DBTypePostgreSQL      DBType = "PostgreSQL"
+	DBTypeTiDB            DBType = "TiDB"
+	DBTypeSQLServer       DBType = "SQL Server"
+	DBTypeOracle          DBType = "Oracle"
+	DBTypeDB2             DBType = "DB2"
+	DBTypeOceanBaseMySQL  DBType = "OceanBase For MySQL"
+	DBTypeTDSQLForInnoDB  DBType = "TDSQL For InnoDB"
+	DBTypeGoldenDB        DBType = "GoldenDB"
+	DBTypeTBase           DBType = "TBase"
+	DBTypeHive            DBType = "Hive"
+	DBTypeDM              DBType = "达梦(DM)"
+	DBTypeGaussDB         DBType = "GaussDB"
+	DBTypeGaussDBForMySQL DBType = "GaussDB for MySQL"
+	DBTypeHANA            DBType = "HANA"
+	DBTypePolarDBForMySQL DBType = "PolarDB For MySQL"
+	DBTypeOceanBaseOracle DBType = "OceanBase For Oracle"
 )
 
 var supportedDataExportDBTypes = map[DBType]struct{}{
-	DBTypeMySQL:          {},
-	DBTypePostgreSQL:     {},
-	DBTypeOracle:         {},
-	DBTypeSQLServer:      {},
-	DBTypeOceanBaseMySQL: {},
-	DBTypeHive:           {},
-	DBTypeDM:             {},
-	// 新增数据源 (Issue #593)
-	DBTypeTiDB:           {},
-	DBTypeTDSQLForInnoDB: {},
-	DBTypeGoldenDB:       {},
-	DBTypeTBase:          {},
-	DBTypeGaussDB:        {},
-	DBTypeDB2:            {},
-	DBTypeHANA:              {},
-	DBTypePolarDBForMySQL:   {},
-	DBTypeOceanBaseOracle:   {},
+	DBTypeMySQL:           {},
+	DBTypePostgreSQL:      {},
+	DBTypeOracle:          {},
+	DBTypeSQLServer:       {},
+	DBTypeOceanBaseMySQL:  {},
+	DBTypeHive:            {},
+	DBTypeDM:              {},
+	DBTypeTiDB:            {},
+	DBTypeTDSQLForInnoDB:  {},
+	DBTypeGoldenDB:        {},
+	DBTypeTBase:           {},
+	DBTypeGaussDB:         {},
+	DBTypeGaussDBForMySQL: {},
+	DBTypeDB2:             {},
+	DBTypeHANA:            {},
+	DBTypePolarDBForMySQL: {},
+	DBTypeOceanBaseOracle: {},
 }
 
 func CheckDBTypeIfDataExportSupported(dbtype string) bool {
diff --git a/internal/dms/pkg/constant/const_test.go b/internal/dms/pkg/constant/const_test.go
index cd871b98..71c14a9b 100644
--- a/internal/dms/pkg/constant/const_test.go
+++ b/internal/dms/pkg/constant/const_test.go
@@ -11,7 +11,9 @@ func TestCheckDBTypeIfDataExportSupported_NewTypes(t *testing.T) {
 		"TDSQL For InnoDB":  true,
 		"GoldenDB":          true,
 		"TBase":             true,
-		"GaussDB for MySQL": true, // GaussDB/openGauss: ParseDBType 的输入值是 "GaussDB for MySQL"
+		// Issue #2868: GaussDB (PostgreSQL 协议) 与 GaussDB for MySQL (MySQL 协议) 是两个独立产品
+		"GaussDB":           true, // PostgreSQL 协议 GaussDB / openGauss, 走 opengauss-connector-go-pq 驱动
+		"GaussDB for MySQL": true, // 华为云 GaussDB(for MySQL), 走 MySQL 驱动
 		"DB2":               true,
 		"HANA":              true,
 		"PolarDB For MySQL": true,
@@ -55,7 +57,7 @@ func TestParseDBType_PolarDB(t *testing.T) {
 	}{
 		"valid PolarDB For MySQL": {
 			input:      "PolarDB For MySQL",
-			wantDBType: DBTypePolarDBMySQL,
+			wantDBType: DBTypePolarDBForMySQL,
 			wantErr:    false,
 		},
 		"invalid lowercase polardb": {
@@ -119,7 +121,9 @@ func TestParseDBType(t *testing.T) {
 		"TBase":              {input: "TBase", expected: DBTypeTBase},
 		"Hive":               {input: "Hive", expected: DBTypeHive},
 		"DM":                 {input: "DM", expected: DBTypeDM},
-		"GaussDB for MySQL":  {input: "GaussDB for MySQL", expected: DBTypeGaussDB},
+		// Issue #2868: 拆分 GaussDB / GaussDB for MySQL 为两个独立产品
+		"GaussDB":            {input: "GaussDB", expected: DBTypeGaussDB},
+		"GaussDB for MySQL":  {input: "GaussDB for MySQL", expected: DBTypeGaussDBForMySQL},
 		"HANA":               {input: "HANA", expected: DBTypeHANA},
 		// PolarDB-MySQL 新增 (Issue #826)
 		"PolarDB For MySQL":  {input: "PolarDB For MySQL", expected: DBTypePolarDBForMySQL},