diff --git a/apiserver/eurekaserver/access.go b/apiserver/eurekaserver/access.go
index 7fc8d6034..9bb85c8e1 100644
--- a/apiserver/eurekaserver/access.go
+++ b/apiserver/eurekaserver/access.go
@@ -317,7 +317,7 @@ func checkRegisterRequest(registrationRequest *RegistrationRequest, req *restful
 		writeHeader(http.StatusBadRequest, rsp)
 		return false
 	}
-	if len(registrationRequest.Instance.InstanceId) == 0 {
+	if len(registrationRequest.Instance.InstanceId) == 0 && len(registrationRequest.Instance.HostName) == 0 {
 		log.Errorf("[EUREKA-SERVER] fail to parse register request, uri: %s, client: %s, err: %s",
 			req.Request.RequestURI, remoteAddr, "instance id required")
 		writePolarisStatusCode(req, api.InvalidInstanceID)
@@ -362,9 +362,7 @@ func (h *EurekaServer) RegisterApplication(req *restful.Request, rsp *restful.Re
 		writeHeader(http.StatusBadRequest, rsp)
 		return
 	}
-	if len(registrationRequest.Instance.InstanceId) == 0 {
-		registrationRequest.Instance.InstanceId = registrationRequest.Instance.HostName
-	}
+
 	if !checkRegisterRequest(registrationRequest, req, rsp) {
 		return
 	}
@@ -607,7 +605,7 @@ func (h *EurekaServer) UpdateMetadata(req *restful.Request, rsp *restful.Respons
 		}
 		metadataMap[key] = values[0]
 	}
-	code := h.updateMetadata(context.Background(), instId, metadataMap)
+	code := h.updateMetadata(context.Background(), appId, instId, metadataMap)
 	writePolarisStatusCode(req, code)
 	if code == api.ExecuteSuccess {
 		log.Infof("[EUREKA-SERVER]instance metadata (instId=%s, appId=%s) has been updated successfully",
diff --git a/apiserver/eurekaserver/applications.go b/apiserver/eurekaserver/applications.go
index e0c1b2313..27b5ae722 100644
--- a/apiserver/eurekaserver/applications.go
+++ b/apiserver/eurekaserver/applications.go
@@ -285,7 +285,6 @@ func parseLeaseInfo(leaseInfo *LeaseInfo, instance *apiservice.Instance) {
 }
 
 func buildInstance(appName string, instance *apiservice.Instance, lastModifyTime int64) *InstanceInfo {
-	eurekaInstanceId := instance.GetId().GetValue()
 	instanceInfo := &InstanceInfo{
 		CountryId: DefaultCountryIdInt,
 		Port: &PortWrapper{
@@ -307,12 +306,14 @@ func buildInstance(appName string, instance *apiservice.Instance, lastModifyTime
 	}
 	instanceInfo.AppName = appName
 	// 属于eureka注册的实例
-	instanceInfo.InstanceId = eurekaInstanceId
+	instanceInfo.InstanceId = instance.GetId().GetValue()
 	metadata := instance.GetMetadata()
 	if metadata == nil {
 		metadata = map[string]string{}
 	}
-	instanceInfo.AppName = appName
+	if eurekaInstanceId, ok := metadata[MetadataInstanceId]; ok {
+		instanceInfo.InstanceId = eurekaInstanceId
+	}
 	if hostName, ok := metadata[MetadataHostName]; ok {
 		instanceInfo.HostName = hostName
 	}
diff --git a/apiserver/eurekaserver/config.go b/apiserver/eurekaserver/config.go
index 05b1462e5..f93b4a4b3 100644
--- a/apiserver/eurekaserver/config.go
+++ b/apiserver/eurekaserver/config.go
@@ -30,6 +30,7 @@ const (
 	optionEnableSelfPreservation = "enableSelfPreservation"
 	optionPeerNodesToReplicate   = "peersToReplicate"
 	optionCustomValues           = "customValues"
+	optionGenerateUniqueInstId   = "generateUniqueInstId"
 )
 
 const (
diff --git a/apiserver/eurekaserver/replicate.go b/apiserver/eurekaserver/replicate.go
index b446e23e0..c61a10faa 100644
--- a/apiserver/eurekaserver/replicate.go
+++ b/apiserver/eurekaserver/replicate.go
@@ -228,12 +228,18 @@ func (h *EurekaServer) handleInstanceEvent(ctx context.Context, i interface{}) e
 	}
 	appName := formatReadName(e.Service)
 	curTimeMilli := time.Now().UnixMilli()
+	eurekaInstanceId := e.Id
+	if e.Instance.Metadata != nil {
+		if _, ok := e.Instance.Metadata[MetadataInstanceId]; ok {
+			eurekaInstanceId = e.Instance.Metadata[MetadataInstanceId]
+		}
+	}
 	switch e.EType {
 	case model.EventInstanceOnline, model.EventInstanceUpdate:
 		instanceInfo := eventToInstance(&e, appName, curTimeMilli)
 		h.replicateWorker.AddReplicateTask(&ReplicationInstance{
 			AppName:            appName,
-			Id:                 e.Id,
+			Id:                 eurekaInstanceId,
 			LastDirtyTimestamp: curTimeMilli,
 			Status:             StatusUp,
 			InstanceInfo:       instanceInfo,
@@ -242,14 +248,14 @@ func (h *EurekaServer) handleInstanceEvent(ctx context.Context, i interface{}) e
 	case model.EventInstanceOffline:
 		h.replicateWorker.AddReplicateTask(&ReplicationInstance{
 			AppName: appName,
-			Id:      e.Id,
+			Id:      eurekaInstanceId,
 			Action:  actionCancel,
 		})
 	case model.EventInstanceSendHeartbeat:
 		instanceInfo := eventToInstance(&e, appName, curTimeMilli)
 		rInstance := &ReplicationInstance{
 			AppName:      appName,
-			Id:           e.Id,
+			Id:           eurekaInstanceId,
 			Status:       StatusUp,
 			InstanceInfo: instanceInfo,
 			Action:       actionHeartbeat,
@@ -261,17 +267,18 @@ func (h *EurekaServer) handleInstanceEvent(ctx context.Context, i interface{}) e
 	case model.EventInstanceOpenIsolate:
 		h.replicateWorker.AddReplicateTask(&ReplicationInstance{
 			AppName:            appName,
-			Id:                 e.Id,
+			Id:                 eurekaInstanceId,
 			LastDirtyTimestamp: curTimeMilli,
-			OverriddenStatus:   StatusOutOfService,
-			Action:             actionHeartbeat,
+			Status:             StatusOutOfService,
+			Action:             actionStatusUpdate,
 		})
 	case model.EventInstanceCloseIsolate:
 		h.replicateWorker.AddReplicateTask(&ReplicationInstance{
 			AppName:            appName,
-			Id:                 e.Id,
+			Id:                 eurekaInstanceId,
 			LastDirtyTimestamp: curTimeMilli,
-			Action:             actionDeleteStatusOverride,
+			Status:             StatusUp,
+			Action:             actionStatusUpdate,
 		})
 
 	}
diff --git a/apiserver/eurekaserver/server.go b/apiserver/eurekaserver/server.go
index 58a400cca..0db32be3a 100644
--- a/apiserver/eurekaserver/server.go
+++ b/apiserver/eurekaserver/server.go
@@ -63,6 +63,7 @@ const (
 	MetadataSecurePort          = "internal-eureka-secure-port"
 	MetadataSecurePortEnabled   = "internal-eureka-secure-port-enabled"
 	MetadataReplicate           = "internal-eureka-replicate"
+	MetadataInstanceId          = "internal-eureka-instance-id"
 
 	ServerEureka = "eureka"
 
@@ -143,7 +144,8 @@ type EurekaServer struct {
 	replicateWorker        *ReplicateWorker
 	eventHandlerHandler    *EurekaInstanceEventHandler
 
-	replicatePeers []string
+	replicatePeers       []string
+	generateUniqueInstId bool
 }
 
 // GetPort 获取端口
@@ -247,6 +249,12 @@ func (h *EurekaServer) Initialize(ctx context.Context, option map[string]interfa
 	}
 	h.enableSelfPreservation = enableSelfPreservation
 
+	if value, ok := option[optionGenerateUniqueInstId]; ok {
+		h.generateUniqueInstId, _ = value.(bool)
+	} else {
+		h.generateUniqueInstId = false
+	}
+
 	if raw, _ := option[optionCustomValues].(map[interface{}]interface{}); raw != nil {
 		for k, v := range raw {
 			CustomEurekaParameters[k.(string)] = fmt.Sprintf("%v", v)
diff --git a/apiserver/eurekaserver/write.go b/apiserver/eurekaserver/write.go
index fc32a28c9..302a2113b 100644
--- a/apiserver/eurekaserver/write.go
+++ b/apiserver/eurekaserver/write.go
@@ -21,6 +21,7 @@ import (
 	"context"
 	"math"
 	"strconv"
+	"strings"
 
 	"github.com/golang/protobuf/ptypes/wrappers"
 	apimodel "github.com/polarismesh/specification/source/go/api/v1/model"
@@ -31,11 +32,29 @@ import (
 	"github.com/polarismesh/polaris/common/utils"
 )
 
-func buildBaseInstance(instance *InstanceInfo, namespace string, appId string) *apiservice.Instance {
+func checkOrBuildNewInstanceId(appId string, instId string, generateUniqueInstId bool) string {
+	if !generateUniqueInstId {
+		return instId
+	}
+	lowerAppId := strings.ToLower(appId)
+	lowerInstIdId := strings.ToLower(instId)
+	if strings.Contains(lowerInstIdId, lowerAppId) {
+		return instId
+	}
+	return lowerAppId + ":" + lowerInstIdId
+}
+
+func buildBaseInstance(
+	instance *InstanceInfo, namespace string, appId string, generateUniqueInstId bool) *apiservice.Instance {
 	targetInstance := &apiservice.Instance{}
 	eurekaMetadata := make(map[string]string)
 
 	eurekaMetadata[MetadataRegisterFrom] = ServerEureka
+	eurekaInstanceId := instance.InstanceId
+	if len(eurekaInstanceId) == 0 {
+		eurekaInstanceId = instance.HostName
+	}
+	eurekaMetadata[MetadataInstanceId] = eurekaInstanceId
 	if len(instance.AppGroupName) > 0 {
 		eurekaMetadata[MetadataAppGroupName] = instance.AppGroupName
 	}
@@ -69,7 +88,8 @@ func buildBaseInstance(instance *InstanceInfo, namespace string, appId string) *
 	if len(instance.SecureVipAddress) > 0 {
 		eurekaMetadata[MetadataSecureVipAddress] = instance.SecureVipAddress
 	}
-	targetInstance.Id = &wrappers.StringValue{Value: instance.InstanceId}
+	targetInstance.Id = &wrappers.StringValue{
+		Value: checkOrBuildNewInstanceId(appId, eurekaInstanceId, generateUniqueInstId)}
 	targetInstance.Metadata = eurekaMetadata
 	targetInstance.Service = &wrappers.StringValue{Value: appId}
 	targetInstance.Namespace = &wrappers.StringValue{Value: namespace}
@@ -131,7 +151,8 @@ func buildStatus(instance *InstanceInfo, targetInstance *apiservice.Instance) {
 	}
 }
 
-func convertEurekaInstance(instance *InstanceInfo, namespace string, appId string) *apiservice.Instance {
+func convertEurekaInstance(
+	instance *InstanceInfo, namespace string, appId string, generateUniqueInstId bool) *apiservice.Instance {
 	var secureEnable bool
 	var securePort int
 	var insecureEnable bool
@@ -154,7 +175,7 @@ func convertEurekaInstance(instance *InstanceInfo, namespace string, appId strin
 		insecurePort = DefaultInsecurePort
 	}
 
-	targetInstance := buildBaseInstance(instance, namespace, appId)
+	targetInstance := buildBaseInstance(instance, namespace, appId, generateUniqueInstId)
 
 	// 同时打开2个端口，通过medata保存http端口
 	targetInstance.Protocol = &wrappers.StringValue{Value: InsecureProtocol}
@@ -173,7 +194,7 @@ func (h *EurekaServer) registerInstances(
 	ctx = context.WithValue(ctx, utils.ContextOpenAsyncRegis, true)
 	appId = formatWriteName(appId)
 	// 1. 先转换数据结构
-	totalInstance := convertEurekaInstance(instance, h.namespace, appId)
+	totalInstance := convertEurekaInstance(instance, h.namespace, appId, h.generateUniqueInstId)
 	// 3. 注册实例
 	resp := h.namingServer.RegisterInstance(ctx, totalInstance)
 	// 4. 注册成功，则返回
@@ -202,6 +223,7 @@ func (h *EurekaServer) deregisterInstance(
 	ctx = context.WithValue(
 		ctx, model.CtxEventKeyMetadata, map[string]string{MetadataReplicate: strconv.FormatBool(replicated)})
 	ctx = context.WithValue(ctx, utils.ContextOpenAsyncRegis, true)
+	instanceId = checkOrBuildNewInstanceId(appId, instanceId, h.generateUniqueInstId)
 	resp := h.namingServer.DeregisterInstance(ctx, &apiservice.Instance{Id: &wrappers.StringValue{Value: instanceId}})
 	return resp.GetCode().GetValue()
 }
@@ -214,6 +236,7 @@ func (h *EurekaServer) updateStatus(
 	}
 	ctx = context.WithValue(
 		ctx, model.CtxEventKeyMetadata, map[string]string{MetadataReplicate: strconv.FormatBool(replicated)})
+	instanceId = checkOrBuildNewInstanceId(appId, instanceId, h.generateUniqueInstId)
 	resp := h.namingServer.UpdateInstance(ctx, &apiservice.Instance{
 		Id: &wrappers.StringValue{Value: instanceId}, Isolate: &wrappers.BoolValue{Value: isolated}})
 	return resp.GetCode().GetValue()
@@ -222,6 +245,7 @@ func (h *EurekaServer) updateStatus(
 func (h *EurekaServer) renew(ctx context.Context, appId string, instanceId string, replicated bool) uint32 {
 	ctx = context.WithValue(
 		ctx, model.CtxEventKeyMetadata, map[string]string{MetadataReplicate: strconv.FormatBool(replicated)})
+	instanceId = checkOrBuildNewInstanceId(appId, instanceId, h.generateUniqueInstId)
 	resp := h.healthCheckServer.Report(ctx, &apiservice.Instance{Id: &wrappers.StringValue{Value: instanceId}})
 	code := resp.GetCode().GetValue()
 
@@ -233,7 +257,9 @@ func (h *EurekaServer) renew(ctx context.Context, appId string, instanceId strin
 	return code
 }
 
-func (h *EurekaServer) updateMetadata(ctx context.Context, instanceId string, metadata map[string]string) uint32 {
+func (h *EurekaServer) updateMetadata(
+	ctx context.Context, appId string, instanceId string, metadata map[string]string) uint32 {
+	instanceId = checkOrBuildNewInstanceId(appId, instanceId, h.generateUniqueInstId)
 	resp := h.namingServer.UpdateInstance(ctx,
 		&apiservice.Instance{Id: &wrappers.StringValue{Value: instanceId}, Metadata: metadata})
 	return resp.GetCode().GetValue()
diff --git a/release/conf/polaris-server.yaml b/release/conf/polaris-server.yaml
index ac528625d..59d4e7b1b 100644
--- a/release/conf/polaris-server.yaml
+++ b/release/conf/polaris-server.yaml
@@ -209,6 +209,7 @@ apiservers:
       refreshInterval: 10
       deltaExpireInterval: 60
       unhealthyExpireInterval: 180
+      generateUniqueInstId: false
       connLimit:
         openConnLimit: false
         maxConnPerHost: 1024