diff --git a/domain/model/group_m/mic.go b/domain/model/group_m/mic.go
index 31f02683c78bea1cd434851d6387b046dcf2677e..7fc0bb4e2f19115a3dc6d73277440a0c379b592e 100644
--- a/domain/model/group_m/mic.go
+++ b/domain/model/group_m/mic.go
@@ -193,7 +193,7 @@ const micUpdateScript = "local flag = redis.call('EXISTS', '{prefixGroupUserMic}
 //上麦(自己)，
 //规则：1：加锁了不能上麦 2：麦上有人，不能上麦
 //cpUserId如果有
-func (mic *Mic) In(userId uint64, externalId string, cpUserId uint64) error {
+func (mic *Mic) In(userId uint64, externalId string) error {
 	// 群是否被封禁, 呃，，，呃，，，呃，，，
 	banned := GroupBanned{ImGroupId: mic.GroupUuid}
 	if err := banned.Get(mic.model); err != gorm.ErrRecordNotFound {
@@ -218,7 +218,6 @@ func (mic *Mic) In(userId uint64, externalId string, cpUserId uint64) error {
 		I:          mic.I,
 		ExternalId: externalId,
 		UserId:     userId,
-		CpUserId:   cpUserId,
 		Forbid:     false,
 		Timestamp:  time.Now().Unix(),
 	})
diff --git a/domain/service/group_mic_s/group_mic.go b/domain/service/group_mic_s/group_mic.go
index 546d608bf8e98e3c35c7bc89c6d0457e0fa49cf1..e3dc63d8858c654bb5e2c279f35efc33e4effad7 100644
--- a/domain/service/group_mic_s/group_mic.go
+++ b/domain/service/group_mic_s/group_mic.go
@@ -126,51 +126,14 @@ func redisLock(key string, sign string, expiration time.Duration, callBack func(
 
 //加入麦位，锁两秒
 func (s *GroupMicService) GroupMicIn(groupUuid string, i int, userId uint64, externalId string) error {
-	model := domain.CreateModelContext(s.svc.MyContext)
-	// 填充cp麦位
-	var cpUserId uint64
-	var cpI int
-	if cpRelation, _ := rpc.GetUserCpRelation(model, userId); cpRelation != nil {
-		micNumType, err := group_m.GetMicNumType(model, groupUuid)
-		if err != nil {
-			return err
-		}
-		_, micUsers, err := group_m.GetAllMic(groupUuid, micNumType)
-		if err != nil {
-			return err
-		}
-		for _, u := range micUsers {
-			if u.UserId == cpRelation.CpUserId {
-				cpUserId = u.UserId
-				cpI = u.I
-				break
-			}
-		}
-	}
-	err := redisLock(redis_key.GetPrefixGroupMicUserInLock(userId), uuid.NewV4().String(), time.Second*2, func() error {
+	return redisLock(redis_key.GetPrefixGroupMicUserInLock(userId), uuid.NewV4().String(), time.Second*2, func() error {
 		model := domain.CreateModel(s.svc.CtxAndDb)
 		mic, err := group_m.GetMic(model, groupUuid, i)
 		if err != nil {
 			return err
 		}
-		return mic.In(userId, externalId, cpUserId)
+		return mic.In(userId, externalId)
 	})
-	if err != nil {
-		return err
-	}
-	// 更新麦上cp的信息
-	if cpUserId > 0 {
-		user, _ := user_m.GetUser(model, cpUserId)
-		return redisLock(redis_key.GetPrefixGroupMicUserInLock(cpUserId), uuid.NewV4().String(), time.Second*2, func() error {
-			model := domain.CreateModel(s.svc.CtxAndDb)
-			mic, err := group_m.GetMic(model, groupUuid, cpI)
-			if err != nil {
-				return err
-			}
-			return mic.Update(cpUserId, user.ExternalId, userId)
-		})
-	}
-	return nil
 }
 
 //离开麦位
@@ -367,3 +330,55 @@ func (s *GroupMicService) IncrGroupPowerOnMicExpAndTime(groupId string, userId u
 	}
 	return nil
 }
+
+func (s *GroupMicService) CheckCpOnMic(groupUuid string) {
+	model := domain.CreateModelContext(s.svc.MyContext)
+	// 填充cp麦位
+	micNumType, err := group_m.GetMicNumType(model, groupUuid)
+	if err != nil {
+		return
+	}
+	_, micUsers, err := group_m.GetAllMic(groupUuid, micNumType)
+	if err != nil {
+		return
+	}
+	// userId->micIndex
+	var userMicIndex = make(map[uint64]int)
+	var userIds []uint64
+	for _, u := range micUsers {
+		userMicIndex[u.UserId] = u.I
+		userIds = append(userIds, u.UserId)
+	}
+	cpPairs, err := rpc.MGetUserCpPairs(model, userIds)
+	// 更新麦上cp的信息
+	if err != nil {
+		model.Log.Errorf("MGetUserCpPairs fail:%v", err)
+		return
+	}
+	users, err := user_m.GetUserMapByIds(model, userIds)
+	if err != nil {
+		model.Log.Errorf("GetUserMapByIds fail:%v", err)
+		return
+	}
+	for _, pairs := range cpPairs {
+		userId := pairs[0]
+		cpUserId := pairs[1]
+		redisLock(redis_key.GetPrefixGroupMicUserInLock(userId), uuid.NewV4().String(), time.Second*2, func() error {
+			model := domain.CreateModel(s.svc.CtxAndDb)
+			mic, err := group_m.GetMic(model, groupUuid, userMicIndex[userId])
+			if err != nil {
+				return err
+			}
+			return mic.Update(userId, users[userId].ExternalId, cpUserId)
+		})
+		redisLock(redis_key.GetPrefixGroupMicUserInLock(cpUserId), uuid.NewV4().String(), time.Second*2, func() error {
+			model := domain.CreateModel(s.svc.CtxAndDb)
+			mic, err := group_m.GetMic(model, groupUuid, userMicIndex[cpUserId])
+			if err != nil {
+				return err
+			}
+			return mic.Update(cpUserId, users[cpUserId].ExternalId, userId)
+		})
+	}
+	return
+}
diff --git a/route/group_r/group_mic.go b/route/group_r/group_mic.go
index a1c999d2caa075fd8a10976432e228134498dd57..b3c02f2d425dbbedf37fea89705389a6c489bc18 100644
--- a/route/group_r/group_mic.go
+++ b/route/group_r/group_mic.go
@@ -600,6 +600,8 @@ func GroupMicIn(c *gin.Context) (*mycontext.MyContext, error) {
 	} else {
 		resp.ResponseOk(c, nil)
 	}
+	// check cp 麦位置
+	go group_mic_s.NewGroupPowerService(myContext).CheckCpOnMic(groupUuid)
 	return myContext, nil
 }