diff --git a/server/internal/service/delivery.go b/server/internal/service/delivery.go
index 8bbe8dd..b93e206 100644
--- a/server/internal/service/delivery.go
+++ b/server/internal/service/delivery.go
@@ -2385,18 +2385,20 @@ type cloudDMRegisterRequest struct {
 }
 
 type cloudDMDataSource struct {
-	InstanceName      string `json:"instanceName"`
-	InstanceDesc      string `json:"instanceDesc"`
-	DSType            string `json:"dsType"`
-	Host              string `json:"host"`
-	SecurityType      string `json:"securityType"`
-	UserName          string `json:"userName"`
-	Password          string `json:"password"`
-	DefaultSchema     any    `json:"defaultSchema"`
-	ClientTimeZone    string `json:"clientTimeZone"`
-	ConnectTimeoutMs  int    `json:"connectTimeoutMs"`
-	SocketTimeoutSecs int    `json:"socketTimeoutSeconds"`
-	ConnectionCharset string `json:"connectionCharset"`
+	InstanceName      string  `json:"instanceName"`
+	InstanceDesc      string  `json:"instanceDesc"`
+	DSType            string  `json:"dsType"`
+	Host              string  `json:"host"`
+	ClusterID         *uint64 `json:"cluster_id"`
+	MySQLVersion      string  `json:"mysql_version"`
+	SecurityType      string  `json:"securityType"`
+	UserName          string  `json:"userName"`
+	Password          string  `json:"password"`
+	DefaultSchema     any     `json:"defaultSchema"`
+	ClientTimeZone    string  `json:"clientTimeZone"`
+	ConnectTimeoutMs  int     `json:"connectTimeoutMs"`
+	SocketTimeoutSecs int     `json:"socketTimeoutSeconds"`
+	ConnectionCharset string  `json:"connectionCharset"`
 }
 
 func cloudDMExternalResourceID(instanceID uint64) string {
@@ -2466,6 +2468,13 @@ func buildCloudDMRegisterRequest(instance model.DeploymentResult, payload delive
 	if description == "" {
 		description = instance.InstanceName
 	}
+	mysqlVersion := strings.TrimSpace(instance.Version)
+	if mysqlVersion == "" {
+		mysqlVersion = strings.TrimSpace(payload.MySQLVersion)
+	}
+	if mysqlVersion == "" {
+		mysqlVersion = "8.0"
+	}
 	return cloudDMRegisterRequest{
 		SourceSystem:       "xinfra",
 		ResourceType:       "MYSQL_INSTANCE",
@@ -2475,6 +2484,8 @@ func buildCloudDMRegisterRequest(instance model.DeploymentResult, payload delive
 			InstanceDesc:      description,
 			DSType:            "MySQL",
 			Host:              net.JoinHostPort(instance.Host, strconv.Itoa(instance.Port)),
+			ClusterID:         nil,
+			MySQLVersion:      mysqlVersion,
 			SecurityType:      "USER_PASSWD",
 			UserName:          "root",
 			Password:          password,
diff --git a/server/internal/service/delivery_test.go b/server/internal/service/delivery_test.go
index ccb01ee..7eea0e8 100644
--- a/server/internal/service/delivery_test.go
+++ b/server/internal/service/delivery_test.go
@@ -147,7 +147,7 @@ func TestAllocatePort(t *testing.T) {
 
 func TestBuildCloudDMRegisterRequest(t *testing.T) {
 	req := buildCloudDMRegisterRequest(
-		model.DeploymentResult{ID: 42, InstanceName: "mysql-payment-prod", Host: "10.0.0.10", Port: 3306},
+		model.DeploymentResult{ID: 42, InstanceName: "mysql-payment-prod", Host: "10.0.0.10", Port: 3306, Version: "8.4"},
 		deliveryPayload{MySQLDeliveryInput: MySQLDeliveryInput{InstanceDesc: "支付生产 MySQL", Timezone: "Asia/Shanghai"}},
 		"secret",
 	)
@@ -160,6 +160,12 @@ func TestBuildCloudDMRegisterRequest(t *testing.T) {
 	if req.DataSource.Host != "10.0.0.10:3306" || req.DataSource.Password != "secret" {
 		t.Fatalf("unexpected data source fields: %#v", req.DataSource)
 	}
+	if req.DataSource.ClusterID != nil {
+		t.Fatalf("cluster_id must be nullable when xinfra cannot resolve it, got %#v", req.DataSource.ClusterID)
+	}
+	if req.DataSource.MySQLVersion != "8.4" {
+		t.Fatalf("unexpected mysql version: %#v", req.DataSource.MySQLVersion)
+	}
 	if req.DataSource.ClientTimeZone != "Asia/Shanghai" || req.DataSource.ConnectionCharset != "utf8" {
 		t.Fatalf("unexpected time zone or charset: %#v", req.DataSource)
 	}
@@ -175,6 +181,12 @@ func TestBuildCloudDMRegisterRequest(t *testing.T) {
 	if value, ok := dataSource["defaultSchema"]; !ok || value != nil {
 		t.Fatalf("defaultSchema must be present as null, got %#v", dataSource["defaultSchema"])
 	}
+	if value, ok := dataSource["cluster_id"]; !ok || value != nil {
+		t.Fatalf("cluster_id must be present as null, got %#v", dataSource["cluster_id"])
+	}
+	if value, ok := dataSource["mysql_version"]; !ok || value != "8.4" {
+		t.Fatalf("mysql_version must be propagated from deployed instance, got %#v", value)
+	}
 }
 
 func TestCloudDMDataSourceIDFromResponse(t *testing.T) {