diff --git a/internal/push/push_handler.go b/internal/push/push_handler.go
index 03c299b7a..029330f1a 100644
--- a/internal/push/push_handler.go
+++ b/internal/push/push_handler.go
@@ -45,6 +45,7 @@ type ConsumerHandler struct {
 	pushConsumerGroup      *kafka.MConsumerGroup
 	offlinePusher          offlinepush.OfflinePusher
 	onlinePusher           OnlinePusher
+	onlineCache            *rpccache.OnlineCache
 	groupLocalCache        *rpccache.GroupLocalCache
 	conversationLocalCache *rpccache.ConversationLocalCache
 	msgRpcClient           rpcclient.MessageRpcClient
@@ -63,16 +64,17 @@ func NewConsumerHandler(config *Config, offlinePusher offlinepush.OfflinePusher,
 	if err != nil {
 		return nil, err
 	}
+	userRpcClient := rpcclient.NewUserRpcClient(client, config.Share.RpcRegisterName.User, config.Share.IMAdminUserID)
 	consumerHandler.offlinePusher = offlinePusher
 	consumerHandler.onlinePusher = NewOnlinePusher(client, config)
 	consumerHandler.groupRpcClient = rpcclient.NewGroupRpcClient(client, config.Share.RpcRegisterName.Group)
 	consumerHandler.groupLocalCache = rpccache.NewGroupLocalCache(consumerHandler.groupRpcClient, &config.LocalCacheConfig, rdb)
 	consumerHandler.msgRpcClient = rpcclient.NewMessageRpcClient(client, config.Share.RpcRegisterName.Msg)
 	consumerHandler.conversationRpcClient = rpcclient.NewConversationRpcClient(client, config.Share.RpcRegisterName.Conversation)
-	consumerHandler.conversationLocalCache = rpccache.NewConversationLocalCache(consumerHandler.conversationRpcClient,
-		&config.LocalCacheConfig, rdb)
+	consumerHandler.conversationLocalCache = rpccache.NewConversationLocalCache(consumerHandler.conversationRpcClient, &config.LocalCacheConfig, rdb)
 	consumerHandler.webhookClient = webhook.NewWebhookClient(config.WebhooksConfig.URL)
 	consumerHandler.config = config
+	consumerHandler.onlineCache = rpccache.NewOnlineCache(userRpcClient, consumerHandler.groupLocalCache, rdb)
 	return &consumerHandler, nil
 }
 
@@ -100,11 +102,13 @@ func (c *ConsumerHandler) handleMs2PsChat(ctx context.Context, msg []byte) {
 		var pushUserIDList []string
 		isSenderSync := datautil.GetSwitchFromOptions(pbData.MsgData.Options, constant.IsSenderSync)
 		if !isSenderSync || pbData.MsgData.SendID == pbData.MsgData.RecvID {
-			pushUserIDList = append(pushUserIDList, pbData.MsgData.RecvID)
+			pushUserIDList, err = c.onlineCache.GetUsersOnline(ctx, []string{pbData.MsgData.RecvID})
 		} else {
-			pushUserIDList = append(pushUserIDList, pbData.MsgData.RecvID, pbData.MsgData.SendID)
+			pushUserIDList, err = c.onlineCache.GetUsersOnline(ctx, []string{pbData.MsgData.RecvID, pbData.MsgData.SendID})
+		}
+		if err == nil {
+			err = c.Push2User(ctx, pushUserIDList, pbData.MsgData)
 		}
-		err = c.Push2User(ctx, pushUserIDList, pbData.MsgData)
 	}
 	if err != nil {
 		log.ZWarn(ctx, "push failed", err, "msg", pbData.String())
@@ -233,7 +237,8 @@ func (c *ConsumerHandler) Push2Group(ctx context.Context, groupID string, msg *s
 }
 func (c *ConsumerHandler) groupMessagesHandler(ctx context.Context, groupID string, pushToUserIDs *[]string, msg *sdkws.MsgData) (err error) {
 	if len(*pushToUserIDs) == 0 {
-		*pushToUserIDs, err = c.groupLocalCache.GetGroupMemberIDs(ctx, groupID)
+		//*pushToUserIDs, err = c.groupLocalCache.GetGroupMemberIDs(ctx, groupID)
+		*pushToUserIDs, err = c.onlineCache.GetGroupOnline(ctx, groupID) //
 		if err != nil {
 			return err
 		}
diff --git a/pkg/common/storage/cache/redis/seq_user_test.go b/pkg/common/storage/cache/redis/seq_user_test.go
index b4c852cd0..cfbea004c 100644
--- a/pkg/common/storage/cache/redis/seq_user_test.go
+++ b/pkg/common/storage/cache/redis/seq_user_test.go
@@ -3,6 +3,7 @@ package redis
 import (
 	"context"
 	"fmt"
+	"github.com/openimsdk/open-im-server/v3/pkg/common/storage/cache/cachekey"
 	"github.com/redis/go-redis/v9"
 	"log"
 	"strconv"
@@ -15,7 +16,7 @@ func newTestOnline() *userOnline {
 	opt := &redis.Options{
 		Addr:     "172.16.8.48:16379",
 		Password: "openIM123",
-		DB:       1,
+		DB:       0,
 	}
 	rdb := redis.NewClient(opt)
 	if err := rdb.Ping(context.Background()).Err(); err != nil {
@@ -63,7 +64,7 @@ func TestGetOnline(t *testing.T) {
 func TestRecvOnline(t *testing.T) {
 	ts := newTestOnline()
 	ctx := context.Background()
-	pubsub := ts.rdb.Subscribe(ctx, "user_online")
+	pubsub := ts.rdb.Subscribe(ctx, cachekey.OnlineChannel)
 
 	// 等待订阅确认
 	_, err := pubsub.Receive(ctx)
diff --git a/pkg/localcache/cache.go b/pkg/localcache/cache.go
index 0e040ad38..ba849f892 100644
--- a/pkg/localcache/cache.go
+++ b/pkg/localcache/cache.go
@@ -31,6 +31,12 @@ type Cache[V any] interface {
 	Stop()
 }
 
+func LRUStringHash(key string) uint64 {
+	h := fnv.New64a()
+	h.Write(*(*[]byte)(unsafe.Pointer(&key)))
+	return h.Sum64()
+}
+
 func New[V any](opts ...Option) Cache[V] {
 	opt := defaultOption()
 	for _, o := range opts {
@@ -49,11 +55,7 @@ func New[V any](opts ...Option) Cache[V] {
 		if opt.localSlotNum == 1 {
 			c.local = createSimpleLRU()
 		} else {
-			c.local = lru.NewSlotLRU[string, V](opt.localSlotNum, func(key string) uint64 {
-				h := fnv.New64a()
-				h.Write(*(*[]byte)(unsafe.Pointer(&key)))
-				return h.Sum64()
-			}, createSimpleLRU)
+			c.local = lru.NewSlotLRU[string, V](opt.localSlotNum, LRUStringHash, createSimpleLRU)
 		}
 		if opt.linkSlotNum > 0 {
 			c.link = link.New(opt.linkSlotNum)
diff --git a/pkg/localcache/lru/lru.go b/pkg/localcache/lru/lru.go
index 64280f238..2fedffc48 100644
--- a/pkg/localcache/lru/lru.go
+++ b/pkg/localcache/lru/lru.go
@@ -20,6 +20,7 @@ type EvictCallback[K comparable, V any] simplelru.EvictCallback[K, V]
 
 type LRU[K comparable, V any] interface {
 	Get(key K, fetch func() (V, error)) (V, error)
+	SetHas(key K, value V) bool
 	Del(key K) bool
 	Stop()
 }
diff --git a/pkg/localcache/lru/lru_expiration.go b/pkg/localcache/lru/lru_expiration.go
index 970ac083e..d27e67057 100644
--- a/pkg/localcache/lru/lru_expiration.go
+++ b/pkg/localcache/lru/lru_expiration.go
@@ -89,5 +89,15 @@ func (x *ExpirationLRU[K, V]) Del(key K) bool {
 	return ok
 }
 
+func (x *ExpirationLRU[K, V]) SetHas(key K, value V) bool {
+	x.lock.Lock()
+	defer x.lock.Unlock()
+	if x.core.Contains(key) {
+		x.core.Add(key, &expirationLruItem[V]{value: value})
+		return true
+	}
+	return false
+}
+
 func (x *ExpirationLRU[K, V]) Stop() {
 }
diff --git a/pkg/localcache/lru/lru_lazy.go b/pkg/localcache/lru/lru_lazy.go
index d6e64aae4..e935c687c 100644
--- a/pkg/localcache/lru/lru_lazy.go
+++ b/pkg/localcache/lru/lru_lazy.go
@@ -88,6 +88,28 @@ func (x *LayLRU[K, V]) Get(key K, fetch func() (V, error)) (V, error) {
 	return v.value, v.err
 }
 
+//func (x *LayLRU[K, V]) Set(key K, value V) {
+//	x.lock.Lock()
+//	x.core.Add(key, &layLruItem[V]{value: value, expires: time.Now().Add(x.successTTL).UnixMilli()})
+//	x.lock.Unlock()
+//}
+//
+//func (x *LayLRU[K, V]) Has(key K) bool {
+//	x.lock.Lock()
+//	defer x.lock.Unlock()
+//	return x.core.Contains(key)
+//}
+
+func (x *LayLRU[K, V]) SetHas(key K, value V) bool {
+	x.lock.Lock()
+	defer x.lock.Unlock()
+	if x.core.Contains(key) {
+		x.core.Add(key, &layLruItem[V]{value: value, expires: time.Now().Add(x.successTTL).UnixMilli()})
+		return true
+	}
+	return false
+}
+
 func (x *LayLRU[K, V]) Del(key K) bool {
 	x.lock.Lock()
 	ok := x.core.Remove(key)
diff --git a/pkg/localcache/lru/lru_slot.go b/pkg/localcache/lru/lru_slot.go
index d034e94d3..4538ca20e 100644
--- a/pkg/localcache/lru/lru_slot.go
+++ b/pkg/localcache/lru/lru_slot.go
@@ -40,6 +40,10 @@ func (x *slotLRU[K, V]) Get(key K, fetch func() (V, error)) (V, error) {
 	return x.slots[x.getIndex(key)].Get(key, fetch)
 }
 
+func (x *slotLRU[K, V]) SetHas(key K, value V) bool {
+	return x.slots[x.getIndex(key)].SetHas(key, value)
+}
+
 func (x *slotLRU[K, V]) Del(key K) bool {
 	return x.slots[x.getIndex(key)].Del(key)
 }
diff --git a/pkg/localcache/option.go b/pkg/localcache/option.go
index 00bb9d044..7d91aba6c 100644
--- a/pkg/localcache/option.go
+++ b/pkg/localcache/option.go
@@ -30,7 +30,7 @@ func defaultOption() *option {
 		localSuccessTTL: time.Minute,
 		localFailedTTL:  time.Second * 5,
 		delFn:           make([]func(ctx context.Context, key ...string), 0, 2),
-		target:          emptyTarget{},
+		target:          EmptyTarget{},
 	}
 }
 
@@ -123,14 +123,14 @@ func WithDeleteKeyBefore(fn func(ctx context.Context, key ...string)) Option {
 	}
 }
 
-type emptyTarget struct{}
+type EmptyTarget struct{}
 
-func (e emptyTarget) IncrGetHit() {}
+func (e EmptyTarget) IncrGetHit() {}
 
-func (e emptyTarget) IncrGetSuccess() {}
+func (e EmptyTarget) IncrGetSuccess() {}
 
-func (e emptyTarget) IncrGetFailed() {}
+func (e EmptyTarget) IncrGetFailed() {}
 
-func (e emptyTarget) IncrDelHit() {}
+func (e EmptyTarget) IncrDelHit() {}
 
-func (e emptyTarget) IncrDelNotFound() {}
+func (e EmptyTarget) IncrDelNotFound() {}
diff --git a/pkg/rpccache/online.go b/pkg/rpccache/online.go
new file mode 100644
index 000000000..79d799bbe
--- /dev/null
+++ b/pkg/rpccache/online.go
@@ -0,0 +1,121 @@
+package rpccache
+
+import (
+	"context"
+	"errors"
+	"github.com/openimsdk/open-im-server/v3/pkg/common/storage/cache/cachekey"
+	"github.com/openimsdk/open-im-server/v3/pkg/localcache"
+	"github.com/openimsdk/open-im-server/v3/pkg/localcache/lru"
+	"github.com/openimsdk/open-im-server/v3/pkg/rpcclient"
+	"github.com/openimsdk/tools/log"
+	"github.com/openimsdk/tools/mcontext"
+	"github.com/redis/go-redis/v9"
+	"math/rand"
+	"strconv"
+	"strings"
+	"time"
+)
+
+func NewOnlineCache(user rpcclient.UserRpcClient, group *GroupLocalCache, rdb redis.UniversalClient) *OnlineCache {
+	x := &OnlineCache{
+		user:  user,
+		group: group,
+		local: lru.NewSlotLRU(1024, localcache.LRUStringHash, func() lru.LRU[string, []int32] {
+			return lru.NewLayLRU[string, []int32](2048, cachekey.OnlineExpire, time.Second*3, localcache.EmptyTarget{}, func(key string, value []int32) {})
+		}),
+	}
+	go func() {
+		parseUserOnlineStatus := func(payload string) (string, []int32, error) {
+			arr := strings.Split(payload, ":")
+			if len(arr) == 0 {
+				return "", nil, errors.New("invalid data")
+			}
+			userID := arr[len(arr)-1]
+			if userID == "" {
+				return "", nil, errors.New("userID is empty")
+			}
+			platformIDs := make([]int32, len(arr)-1)
+			for i := range platformIDs {
+				platformID, err := strconv.Atoi(arr[i])
+				if err != nil {
+					return "", nil, err
+				}
+				platformIDs[i] = int32(platformID)
+			}
+			return userID, platformIDs, nil
+		}
+		ctx := mcontext.SetOperationID(context.Background(), cachekey.OnlineChannel+strconv.FormatUint(rand.Uint64(), 10))
+		for message := range rdb.Subscribe(ctx, cachekey.OnlineChannel).Channel() {
+			userID, platformIDs, err := parseUserOnlineStatus(message.Payload)
+			if err != nil {
+				log.ZError(ctx, "redis subscribe parseUserOnlineStatus", err, "payload", message.Payload, "channel", message.Channel)
+				continue
+			}
+			x.setUserOnline(userID, platformIDs)
+			//if err := x.setUserOnline(ctx, userID, platformIDs); err != nil {
+			//	log.ZError(ctx, "redis subscribe setUserOnline", err, "payload", message.Payload, "channel", message.Channel)
+			//}
+		}
+	}()
+	return x
+}
+
+type OnlineCache struct {
+	user  rpcclient.UserRpcClient
+	group *GroupLocalCache
+	local lru.LRU[string, []int32]
+}
+
+func (o *OnlineCache) getUserOnlineKey(userID string) string {
+	return "<u>" + userID
+}
+
+func (o *OnlineCache) GetUserOnlinePlatform(ctx context.Context, userID string) ([]int32, error) {
+	return o.local.Get(userID, func() ([]int32, error) {
+		return o.user.GetUserOnlinePlatform(ctx, userID)
+	})
+}
+
+func (o *OnlineCache) GetUserOnline(ctx context.Context, userID string) (bool, error) {
+	platformIDs, err := o.GetUserOnlinePlatform(ctx, userID)
+	if err != nil {
+		return false, err
+	}
+	return len(platformIDs) > 0, nil
+}
+
+func (o *OnlineCache) GetUsersOnline(ctx context.Context, userIDs []string) ([]string, error) {
+	onlineUserIDs := make([]string, 0, len(userIDs))
+	for _, userID := range userIDs {
+		online, err := o.GetUserOnline(ctx, userID)
+		if err != nil {
+			return nil, err
+		}
+		if online {
+			onlineUserIDs = append(onlineUserIDs, userID)
+		}
+	}
+	return onlineUserIDs, nil
+}
+
+func (o *OnlineCache) GetGroupOnline(ctx context.Context, groupID string) ([]string, error) {
+	userIDs, err := o.group.GetGroupMemberIDs(ctx, groupID)
+	if err != nil {
+		return nil, err
+	}
+	var onlineUserIDs []string
+	for _, userID := range userIDs {
+		online, err := o.GetUserOnline(ctx, userID)
+		if err != nil {
+			return nil, err
+		}
+		if online {
+			onlineUserIDs = append(onlineUserIDs, userID)
+		}
+	}
+	return onlineUserIDs, nil
+}
+
+func (o *OnlineCache) setUserOnline(userID string, platformIDs []int32) {
+	o.local.SetHas(o.getUserOnlineKey(userID), platformIDs)
+}
diff --git a/pkg/rpccache/user.go b/pkg/rpccache/user.go
index 25a8eb20d..6126f5891 100644
--- a/pkg/rpccache/user.go
+++ b/pkg/rpccache/user.go
@@ -110,3 +110,18 @@ func (u *UserLocalCache) GetUsersInfoMap(ctx context.Context, userIDs []string)
 	}
 	return users, nil
 }
+
+//func (u *UserLocalCache) GetUserOnlinePlatform(ctx context.Context, userID string) (val []int32, err error) {
+//	log.ZDebug(ctx, "UserLocalCache GetUserOnlinePlatform req", "userID", userID)
+//	defer func() {
+//		if err == nil {
+//			log.ZDebug(ctx, "UserLocalCache GetUserOnlinePlatform return", "value", val)
+//		} else {
+//			log.ZError(ctx, "UserLocalCache GetUserOnlinePlatform return", err)
+//		}
+//	}()
+//	return localcache.AnyValue[[]int32](u.local.Get(ctx, cachekey.GetOnlineKey(userID), func(ctx context.Context) (any, error) {
+//		log.ZDebug(ctx, "UserLocalCache GetUserGlobalMsgRecvOpt rpc", "userID", userID)
+//		return u.client.GetUserGlobalMsgRecvOpt(ctx, userID)
+//	}))
+//}
diff --git a/pkg/rpcclient/user.go b/pkg/rpcclient/user.go
index aab96603e..cac44fce0 100644
--- a/pkg/rpcclient/user.go
+++ b/pkg/rpcclient/user.go
@@ -193,3 +193,25 @@ func (u *UserRpcClient) GetNotificationByID(ctx context.Context, userID string)
 	})
 	return err
 }
+
+func (u *UserRpcClient) GetUsersOnlinePlatform(ctx context.Context, userIDs []string) ([]*user.OnlineStatus, error) {
+	if len(userIDs) == 0 {
+		return nil, nil
+	}
+	resp, err := u.Client.GetUserStatus(ctx, &user.GetUserStatusReq{UserIDs: userIDs})
+	if err != nil {
+		return nil, err
+	}
+	return resp.StatusList, nil
+}
+
+func (u *UserRpcClient) GetUserOnlinePlatform(ctx context.Context, userID string) ([]int32, error) {
+	resp, err := u.GetUsersOnlinePlatform(ctx, []string{userID})
+	if err != nil {
+		return nil, err
+	}
+	if len(resp) == 0 {
+		return nil, nil
+	}
+	return resp[0].PlatformIDs, nil
+}