diff --git a/README.md b/README.md
index 022b85c4..80f70f2d 100644
--- a/README.md
+++ b/README.md
@@ -76,7 +76,7 @@ sudo autok3s join \
     --v-switch <v-switch id> \
     --security-group <security-group id> \
     --token <k3s token> \
-    --url <k3s master ip> \
+    --ip <k3s master/lb ip> \
     --worker 1
 ```
 
diff --git a/pkg/cluster/cluster.go b/pkg/cluster/cluster.go
index 7ff99e55..99e32cfa 100644
--- a/pkg/cluster/cluster.go
+++ b/pkg/cluster/cluster.go
@@ -93,8 +93,12 @@ func InitK3sCluster(cluster *types.Cluster) error {
 		return errors.New("[cluster] master node internal ip address can not be empty")
 	}
 
-	cluster.URL = cluster.MasterNodes[0].InternalIPAddress[0]
-	publicIP := cluster.MasterNodes[0].PublicIPAddress[0]
+	publicIP := cluster.IP
+	if cluster.IP == "" {
+		cluster.IP = cluster.MasterNodes[0].InternalIPAddress[0]
+		publicIP = cluster.MasterNodes[0].PublicIPAddress[0]
+	}
+
 	masterExtraArgs := cluster.MasterExtraArgs
 	workerExtraArgs := cluster.WorkerExtraArgs
 
@@ -271,11 +275,11 @@ func JoinK3sNode(merged, added *types.Cluster) error {
 		return errors.New("[cluster] k3s token can not be empty")
 	}
 
-	if merged.URL == "" {
+	if merged.IP == "" {
 		if len(merged.MasterNodes) <= 0 || len(merged.MasterNodes[0].InternalIPAddress) <= 0 {
 			return errors.New("[cluster] master node internal ip address can not be empty")
 		}
-		merged.URL = merged.MasterNodes[0].InternalIPAddress[0]
+		merged.IP = merged.MasterNodes[0].InternalIPAddress[0]
 	}
 
 	errChan := make(chan error)
@@ -563,7 +567,7 @@ func initWorker(wg *sync.WaitGroup, errChan chan error, k3sScript, k3sMirror, do
 	}
 
 	if _, err := execute(&hosts.Host{Node: worker},
-		fmt.Sprintf(joinCommand, k3sScript, k3sMirror, cluster.Registries, cluster.URL, cluster.Token,
+		fmt.Sprintf(joinCommand, k3sScript, k3sMirror, cluster.Registries, cluster.IP, cluster.Token,
 			strings.TrimSpace(extraArgs), cluster.K3sVersion), false); err != nil {
 		errChan <- err
 	}
@@ -574,7 +578,7 @@ func joinMaster(wg *sync.WaitGroup, errChan chan error, noFlannel bool, k3sScrip
 	defer wg.Done()
 
 	if !strings.Contains(extraArgs, "server --server") {
-		extraArgs += " server --server " + fmt.Sprintf("https://%s:6443", merged.URL)
+		extraArgs += " server --server " + fmt.Sprintf("https://%s:6443", merged.IP)
 	}
 
 	if merged.DataStore != "" {
@@ -607,7 +611,7 @@ func joinMaster(wg *sync.WaitGroup, errChan chan error, noFlannel bool, k3sScrip
 
 	// for now, use the workerCommand to join the additional master server node.
 	if _, err := execute(&hosts.Host{Node: full},
-		fmt.Sprintf(joinCommand, k3sScript, k3sMirror, merged.Registries, merged.URL, merged.Token,
+		fmt.Sprintf(joinCommand, k3sScript, k3sMirror, merged.Registries, merged.IP, merged.Token,
 			strings.TrimSpace(extraArgs), merged.K3sVersion), false); err != nil {
 		errChan <- err
 	}
@@ -629,7 +633,7 @@ func joinWorker(wg *sync.WaitGroup, errChan chan error, k3sScript, k3sMirror, do
 	}
 
 	if _, err := execute(&hosts.Host{Node: full},
-		fmt.Sprintf(joinCommand, k3sScript, k3sMirror, merged.Registries, merged.URL, merged.Token,
+		fmt.Sprintf(joinCommand, k3sScript, k3sMirror, merged.Registries, merged.IP, merged.Token,
 			strings.TrimSpace(extraArgs), merged.K3sVersion), false); err != nil {
 		errChan <- err
 	}
diff --git a/pkg/providers/alibaba/flag.go b/pkg/providers/alibaba/flag.go
index d3c561cc..fc5f91d3 100644
--- a/pkg/providers/alibaba/flag.go
+++ b/pkg/providers/alibaba/flag.go
@@ -151,16 +151,6 @@ func (p *Alibaba) GetDeleteFlags(cmd *cobra.Command) *pflag.FlagSet {
 func (p *Alibaba) GetJoinFlags(cmd *cobra.Command) *pflag.FlagSet {
 	fs := p.sharedFlags()
 
-	fs = append(fs, []types.Flag{
-		{
-			Name:     "url",
-			P:        &p.URL,
-			V:        p.URL,
-			Usage:    "Specify K3s master URL",
-			Required: true,
-		},
-	}...)
-
 	for _, f := range fs {
 		if f.ShortHand == "" {
 			if cmd.Flags().Lookup(f.Name) == nil {
@@ -193,7 +183,7 @@ func (p *Alibaba) GetJoinFlags(cmd *cobra.Command) *pflag.FlagSet {
 			// join command need merge status & token value.
 			p.Status = matched.Status
 			p.Token = matched.Token
-			p.URL = matched.URL
+			p.IP = matched.IP
 			p.mergeOptions(*matched)
 		}
 
@@ -372,6 +362,12 @@ func (p *Alibaba) sharedFlags() []types.Flag {
 			Usage:    "Used to specify the maximum out flow of the instance internet",
 			Required: true,
 		},
+		{
+			Name:     "ip",
+			P:        &p.IP,
+			V:        p.IP,
+			Usage:    "Specify K3s master/lb ip",
+		},
 		{
 			Name:     "k3s-version",
 			P:        &p.K3sVersion,
diff --git a/pkg/types/autok3s.go b/pkg/types/autok3s.go
index 8ea58756..0c057478 100644
--- a/pkg/types/autok3s.go
+++ b/pkg/types/autok3s.go
@@ -18,7 +18,7 @@ type Metadata struct {
 	Worker                 string `json:"worker" yaml:"worker"`
 	Token                  string `json:"token,omitempty" yaml:"token,omitempty"`
 	UI                     string `json:"ui,omitempty" yaml:"ui,omitempty"`
-	URL                    string `json:"url,omitempty" yaml:"url,omitempty"`
+	IP                     string `json:"ip,omitempty" yaml:"ip,omitempty"`
 	Repo                   string `json:"repo,omitempty" yaml:"repo,omitempty"`
 	ClusterCIDR            string `json:"cluster-cidr,omitempty" yaml:"cluster-cidr,omitempty"`
 	CloudControllerManager string `json:"cloud-controller-manager,omitempty" yaml:"cloud-controller-manager,omitempty"`