diff --git a/internal/api/init.go b/internal/api/init.go
index fe8ac1cd0..e5338fc57 100644
--- a/internal/api/init.go
+++ b/internal/api/init.go
@@ -26,7 +26,6 @@ import (
 	"github.com/openimsdk/tools/errs"
 	"github.com/openimsdk/tools/log"
 	"github.com/openimsdk/tools/system/program"
-	"github.com/openimsdk/tools/utils/jsonutil"
 )
 
 type Config struct {
@@ -96,10 +95,7 @@ func Start(ctx context.Context, index int, cfg *Config) error {
 
 			etcdClient := client.(*etcd.SvcDiscoveryRegistryImpl).GetClient()
 
-			_, err = etcdClient.Put(ctx, prommetrics.BuildDiscoveryKey(prommetrics.APIKeyName), jsonutil.StructToJsonString(prommetrics.BuildDefaultTarget(registerIP, prometheusPort)))
-			if err != nil {
-				return errs.WrapMsg(err, "etcd put err")
-			}
+			prommetrics.Register(ctx, etcdClient, prommetrics.APIKeyName, registerIP, prometheusPort)
 		} else {
 			prometheusPort, err = datautil.GetElemByIndex(cfg.API.Prometheus.Ports, index)
 			if err != nil {
diff --git a/internal/api/prometheus_discovery.go b/internal/api/prometheus_discovery.go
index 6f17953ae..2bf9d495d 100644
--- a/internal/api/prometheus_discovery.go
+++ b/internal/api/prometheus_discovery.go
@@ -38,7 +38,7 @@ func (p *PrometheusDiscoveryApi) Enable(c *gin.Context) {
 }
 
 func (p *PrometheusDiscoveryApi) discovery(c *gin.Context, key string) {
-	eResp, err := p.client.Get(c, prommetrics.BuildDiscoveryKey(key))
+	eResp, err := p.client.Get(c, prommetrics.BuildDiscoveryKeyPrefix(key))
 	if err != nil {
 		// Log and respond with an error if preparation fails.
 		apiresp.GinError(c, errs.WrapMsg(err, "etcd get err"))
diff --git a/internal/msgtransfer/init.go b/internal/msgtransfer/init.go
index 1ac97eeb1..6507fa3be 100644
--- a/internal/msgtransfer/init.go
+++ b/internal/msgtransfer/init.go
@@ -26,7 +26,6 @@ import (
 	"syscall"
 
 	"github.com/openimsdk/tools/discovery/etcd"
-	"github.com/openimsdk/tools/utils/jsonutil"
 	"github.com/openimsdk/tools/utils/network"
 
 	"github.com/openimsdk/open-im-server/v3/pkg/common/prommetrics"
@@ -178,10 +177,7 @@ func (m *MsgTransfer) Start(index int, cfg *Config) error {
 
 			etcdClient := client.(*etcd.SvcDiscoveryRegistryImpl).GetClient()
 
-			_, err = etcdClient.Put(context.TODO(), prommetrics.BuildDiscoveryKey(prommetrics.MessageTransferKeyName), jsonutil.StructToJsonString(prommetrics.BuildDefaultTarget(registerIP, prometheusPort)))
-			if err != nil {
-				return errs.WrapMsg(err, "etcd put err")
-			}
+			prommetrics.Register(context.TODO(), etcdClient, prommetrics.MessageTransferKeyName, registerIP, prometheusPort)
 		} else {
 			prometheusPort, err = datautil.GetElemByIndex(cfg.MsgTransfer.Prometheus.Ports, index)
 			if err != nil {
diff --git a/pkg/common/prommetrics/discovery.go b/pkg/common/prommetrics/discovery.go
index 8f03bc2ae..b45902d63 100644
--- a/pkg/common/prommetrics/discovery.go
+++ b/pkg/common/prommetrics/discovery.go
@@ -1,6 +1,13 @@
 package prommetrics
 
-import "fmt"
+import (
+	"context"
+	"fmt"
+
+	"github.com/openimsdk/tools/errs"
+	"github.com/openimsdk/tools/utils/jsonutil"
+	clientv3 "go.etcd.io/etcd/client/v3"
+)
 
 const (
 	APIKeyName             = "api"
@@ -17,8 +24,12 @@ type RespTarget struct {
 	Labels  map[string]string `json:"labels"`
 }
 
-func BuildDiscoveryKey(name string) string {
-	return fmt.Sprintf("%s/%s/%s", "openim", "prometheus_discovery", name)
+func BuildDiscoveryKeyPrefix(name string) string {
+	return fmt.Sprintf("%s/%s/%s/", "openim", "prometheus_discovery", name)
+}
+
+func BuildDiscoveryKey(name string, host string, port int) string {
+	return fmt.Sprintf("%s/%s/%s/%s:%d", "openim", "prometheus_discovery", name, host, port)
 }
 
 func BuildDefaultTarget(host string, ip int) Target {
@@ -29,3 +40,30 @@ func BuildDefaultTarget(host string, ip int) Target {
 		},
 	}
 }
+
+func Register(ctx context.Context, etcdClient *clientv3.Client, rpcRegisterName string, registerIP string, prometheusPort int) error {
+	// create lease
+	leaseResp, err := etcdClient.Grant(ctx, 30)
+	if err != nil {
+		return errs.WrapMsg(err, "failed to create lease in etcd")
+	}
+	// release
+	keepAliveChan, err := etcdClient.KeepAlive(ctx, leaseResp.ID)
+	if err != nil {
+		return errs.WrapMsg(err, "failed to keep alive lease")
+	}
+	// release resp
+	go func() {
+		for range keepAliveChan {
+		}
+	}()
+	putOpts := []clientv3.OpOption{}
+	if leaseResp != nil {
+		putOpts = append(putOpts, clientv3.WithLease(leaseResp.ID))
+	}
+	_, err = etcdClient.Put(ctx, BuildDiscoveryKey(rpcRegisterName, registerIP, prometheusPort), jsonutil.StructToJsonString(BuildDefaultTarget(registerIP, prometheusPort)), putOpts...)
+	if err != nil {
+		return errs.WrapMsg(err, "etcd put err")
+	}
+	return nil
+}
diff --git a/pkg/common/startrpc/start.go b/pkg/common/startrpc/start.go
index 3d4394c51..c6aaacc2f 100644
--- a/pkg/common/startrpc/start.go
+++ b/pkg/common/startrpc/start.go
@@ -29,7 +29,6 @@ import (
 	conf "github.com/openimsdk/open-im-server/v3/pkg/common/config"
 	"github.com/openimsdk/tools/discovery/etcd"
 	"github.com/openimsdk/tools/utils/datautil"
-	"github.com/openimsdk/tools/utils/jsonutil"
 	"google.golang.org/grpc/status"
 
 	kdisc "github.com/openimsdk/open-im-server/v3/pkg/common/discoveryregister"
@@ -118,10 +117,7 @@ func Start[T any](ctx context.Context, discovery *conf.Discovery, prometheusConf
 
 			etcdClient := client.(*etcd.SvcDiscoveryRegistryImpl).GetClient()
 
-			_, err = etcdClient.Put(ctx, prommetrics.BuildDiscoveryKey(rpcRegisterName), jsonutil.StructToJsonString(prommetrics.BuildDefaultTarget(registerIP, prometheusPort)))
-			if err != nil {
-				return errs.WrapMsg(err, "etcd put err")
-			}
+			prommetrics.Register(ctx, etcdClient, rpcRegisterName, registerIP, prometheusPort)
 		} else {
 			prometheusPort, err = datautil.GetElemByIndex(prometheusConfig.Ports, index)
 			if err != nil {