diff --git a/internal/db/models/node_cluster_dao.go b/internal/db/models/node_cluster_dao.go
index 449025cc..5076900f 100644
--- a/internal/db/models/node_cluster_dao.go
+++ b/internal/db/models/node_cluster_dao.go
@@ -125,13 +125,13 @@ func (this *NodeClusterDAO) FindAllEnableClusterIds(tx *dbs.Tx) (result []int64,
 }
 
 // CreateCluster 创建集群
-func (this *NodeClusterDAO) CreateCluster(tx *dbs.Tx, adminId int64, name string, grantId int64, installDir string, dnsDomainId int64, dnsName string, cachePolicyId int64, httpFirewallPolicyId int64, systemServices map[string]maps.Map) (clusterId int64, err error) {
+func (this *NodeClusterDAO) CreateCluster(tx *dbs.Tx, adminId int64, name string, grantId int64, installDir string, dnsDomainId int64, dnsName string, dnsTTL int32, cachePolicyId int64, httpFirewallPolicyId int64, systemServices map[string]maps.Map) (clusterId int64, err error) {
 	uniqueId, err := this.GenUniqueId(tx)
 	if err != nil {
 		return 0, err
 	}
 
-	secret := rands.String(32)
+	var secret = rands.String(32)
 	err = SharedApiTokenDAO.CreateAPIToken(tx, uniqueId, secret, nodeconfigs.NodeRoleCluster)
 	if err != nil {
 		return 0, err
@@ -151,7 +151,7 @@ func (this *NodeClusterDAO) CreateCluster(tx *dbs.Tx, adminId int64, name string
 		ServersAutoSync:  true,
 		CNameRecords:     []string{},
 		CNameAsDomain:    true,
-		TTL:              0,
+		TTL:              dnsTTL,
 		IncludingLnNodes: true,
 	}
 	dnsJSON, err := json.Marshal(dnsConfig)
diff --git a/internal/rpc/services/service_node_cluster.go b/internal/rpc/services/service_node_cluster.go
index 22640fc3..ea2db270 100644
--- a/internal/rpc/services/service_node_cluster.go
+++ b/internal/rpc/services/service_node_cluster.go
@@ -33,7 +33,7 @@ func (this *NodeClusterService) CreateNodeCluster(ctx context.Context, req *pb.C
 	}
 
 	// 系统服务
-	systemServices := map[string]maps.Map{}
+	var systemServices = map[string]maps.Map{}
 	if len(req.SystemServicesJSON) > 0 {
 		err = json.Unmarshal(req.SystemServicesJSON, &systemServices)
 		if err != nil {
@@ -61,7 +61,12 @@ func (this *NodeClusterService) CreateNodeCluster(ctx context.Context, req *pb.C
 			req.HttpFirewallPolicyId = policyId
 		}
 
-		clusterId, err = models.SharedNodeClusterDAO.CreateCluster(tx, adminId, req.Name, req.NodeGrantId, req.InstallDir, req.DnsDomainId, req.DnsName, req.HttpCachePolicyId, req.HttpFirewallPolicyId, systemServices)
+		// DNS
+		if req.DnsTTL < 0 {
+			req.DnsTTL = 0
+		}
+
+		clusterId, err = models.SharedNodeClusterDAO.CreateCluster(tx, adminId, req.Name, req.NodeGrantId, req.InstallDir, req.DnsDomainId, req.DnsName, req.DnsTTL, req.HttpCachePolicyId, req.HttpFirewallPolicyId, systemServices)
 		if err != nil {
 			return err
 		}