diff --git a/internal/utils/convert.go b/internal/utils/convert.go
index 690c6eedc..8ee23a4ae 100644
--- a/internal/utils/convert.go
+++ b/internal/utils/convert.go
@@ -41,7 +41,7 @@ func (db *DBFriend) convert() (*sdk.FriendInfo, error) {
 	return pbFriend, nil
 }
 
-func (pb *PBFriend) convert() (*imdb.Friend, error) {
+func (pb *PBFriend) Convert() (*imdb.Friend, error) {
 	dbFriend := &imdb.Friend{}
 	utils2.CopyStructFields(dbFriend, pb)
 	dbFriend.FriendUserID = pb.FriendUser.UserID
@@ -57,14 +57,14 @@ type PBFriendRequest struct {
 	*sdk.FriendRequest
 }
 
-func (pb *PBFriendRequest) convert() (*imdb.FriendRequest, error) {
+func (pb *PBFriendRequest) Convert() (*imdb.FriendRequest, error) {
 	dbFriendRequest := &imdb.FriendRequest{}
 	utils.CopyStructFields(dbFriendRequest, pb)
 	dbFriendRequest.CreateTime = utils.UnixSecondToTime(int64(pb.CreateTime))
 	dbFriendRequest.HandleTime = utils.UnixSecondToTime(int64(pb.HandleTime))
 	return dbFriendRequest, nil
 }
-func (db *DBFriendRequest) convert() (*sdk.FriendRequest, error) {
+func (db *DBFriendRequest) Convert() (*sdk.FriendRequest, error) {
 	pbFriendRequest := &sdk.FriendRequest{}
 	utils.CopyStructFields(pbFriendRequest, db)
 	user, err := getUsersInfo([]string{db.FromUserID})
@@ -94,13 +94,13 @@ type PBBlack struct {
 	*sdk.BlackInfo
 }
 
-func (pb *PBBlack) convert() (*imdb.Black, error) {
+func (pb *PBBlack) Convert() (*imdb.Black, error) {
 	dbBlack := &imdb.Black{}
 	dbBlack.BlockUserID = pb.BlackUserInfo.UserID
 	dbBlack.CreateTime = utils.UnixSecondToTime(int64(pb.CreateTime))
 	return dbBlack, nil
 }
-func (db *DBBlack) convert() (*sdk.BlackInfo, error) {
+func (db *DBBlack) Convert() (*sdk.BlackInfo, error) {
 	pbBlack := &sdk.BlackInfo{}
 	utils.CopyStructFields(pbBlack, db)
 	pbBlack.CreateTime = uint32(db.CreateTime.Unix())
@@ -125,7 +125,7 @@ func (pb *PBGroup) Convert() (*imdb.Group, error) {
 	utils.CopyStructFields(dst, pb)
 	return dst, nil
 }
-func (db *DBGroup) convert() (*sdk.GroupInfo, error) {
+func (db *DBGroup) Convert() (*sdk.GroupInfo, error) {
 	dst := &sdk.GroupInfo{}
 	utils.CopyStructFields(dst, db)
 	user, err := getGroupOwnerInfo(db.GroupID)
@@ -155,14 +155,14 @@ type PBGroupMember struct {
 	*sdk.GroupMemberFullInfo
 }
 
-func (pb *PBGroupMember) convert() (*imdb.GroupMember, error) {
+func (pb *PBGroupMember) Convert() (*imdb.GroupMember, error) {
 	dst := &imdb.GroupMember{}
 	utils.CopyStructFields(dst, pb)
 	dst.JoinTime = utils.UnixSecondToTime(int64(pb.JoinTime))
 	dst.MuteEndTime = utils.UnixSecondToTime(int64(pb.MuteEndTime))
 	return dst, nil
 }
-func (db *DBGroupMember) convert() (*sdk.GroupMemberFullInfo, error) {
+func (db *DBGroupMember) Convert() (*sdk.GroupMemberFullInfo, error) {
 	dst := &sdk.GroupMemberFullInfo{}
 	utils.CopyStructFields(dst, db)
 
@@ -191,14 +191,14 @@ type PBGroupRequest struct {
 	*sdk.GroupRequest
 }
 
-func (pb *PBGroupRequest) convert() (*imdb.GroupRequest, error) {
+func (pb *PBGroupRequest) Convert() (*imdb.GroupRequest, error) {
 	dst := &imdb.GroupRequest{}
 	utils.CopyStructFields(dst, pb)
 	dst.ReqTime = utils.UnixSecondToTime(int64(pb.ReqTime))
 	dst.HandledTime = utils.UnixSecondToTime(int64(pb.HandleTime))
 	return dst, nil
 }
-func (db *DBGroupRequest) convert() (*sdk.GroupRequest, error) {
+func (db *DBGroupRequest) Convert() (*sdk.GroupRequest, error) {
 	dst := &sdk.GroupRequest{}
 	utils.CopyStructFields(dst, db)
 	dst.ReqTime = uint32(db.ReqTime.Unix())
@@ -214,7 +214,7 @@ type PBUser struct {
 	*sdk.UserInfo
 }
 
-func (pb *PBUser) convert() (*imdb.User, error) {
+func (pb *PBUser) Convert() (*imdb.User, error) {
 	dst := &imdb.User{}
 	utils.CopyStructFields(dst, pb)
 	dst.Birth = utils.UnixSecondToTime(pb.Birthday)
@@ -222,7 +222,7 @@ func (pb *PBUser) convert() (*imdb.User, error) {
 	return dst, nil
 }
 
-func (db *DBUser) convert() (*sdk.UserInfo, error) {
+func (db *DBUser) Convert() (*sdk.UserInfo, error) {
 	dst := &sdk.UserInfo{}
 	utils.CopyStructFields(dst, db)
 	dst.CreateTime = uint32(db.CreateTime.Unix())
@@ -230,7 +230,7 @@ func (db *DBUser) convert() (*sdk.UserInfo, error) {
 	return dst, nil
 }
 
-func (db *DBUser) convertPublic() (*sdk.PublicUserInfo, error) {
+func (db *DBUser) ConvertPublic() (*sdk.PublicUserInfo, error) {
 	dst := &sdk.PublicUserInfo{}
 	utils.CopyStructFields(dst, db)
 	return dst, nil
diff --git a/pkg/common/db/cache/group.go b/pkg/common/db/cache/group.go
index 04f4837b4..425d7255a 100644
--- a/pkg/common/db/cache/group.go
+++ b/pkg/common/db/cache/group.go
@@ -22,11 +22,7 @@ type GroupCache struct {
 }
 
 func NewGroupCache(rdb redis.UniversalClient, db mysql.GroupModelInterface, opts rockscache.Options) *GroupCache {
-	rcClient := &rockscache.Client{
-		Options: rockscache.Options{},
-	}
-	redisClient := NewRedisClient(rdb)
-	return &GroupCache{rcClient: rcClient, expireTime: GroupExpireTime, db: db, redisClient: redisClient}
+	return &GroupCache{rcClient: rockscache.NewClient(rdb, opts), expireTime: GroupExpireTime, db: db, redisClient: NewRedisClient(rdb)}
 }
 
 func (g *GroupCache) getRedisClient() *RedisClient {
diff --git a/pkg/common/db/model/group.go b/pkg/common/db/model/group.go
index c1c2a1d69..60f1cd88f 100644
--- a/pkg/common/db/model/group.go
+++ b/pkg/common/db/model/group.go
@@ -32,6 +32,8 @@ func NewGroupModel(db mysql.GroupModelInterface, rdb redis.UniversalClient, mdb
 		DisableCacheRead:  false,
 		StrongConsistency: true,
 	})
+	sg := mdb.Database().Collection()
+	sg.Find()
 	groupModel.mongo = mongoDB.NewMongoClient(mdb)
 	return &groupModel
 }
@@ -60,3 +62,20 @@ func (g *GroupModel) Delete(ctx context.Context, groupIDs []string) error {
 func (g *GroupModel) Take(ctx context.Context, groupID string) (group *mysql.Group, err error) {
 	return g.cache.GetGroupInfoFromCache(ctx, groupID)
 }
+
+func (g *GroupModel) Update(ctx context.Context, groups []*mysql.Group) error {
+	err := g.db.DB.Transaction(func(tx *gorm.DB) error {
+		if err := g.db.Update(ctx, groups, tx); err != nil {
+			return err
+		}
+		var groupIDs []string
+		for _, group := range groups {
+			groupIDs = append(groupIDs, group.GroupID)
+		}
+		if err := g.cache.DelGroupsInfoFromCache(ctx, groupIDs); err != nil {
+			return err
+		}
+		return nil
+	})
+	return err
+}
diff --git a/pkg/common/db/mongoDB/super_group.go b/pkg/common/db/mongoDB/super_group.go
index a28289b80..980e39490 100644
--- a/pkg/common/db/mongoDB/super_group.go
+++ b/pkg/common/db/mongoDB/super_group.go
@@ -1,5 +1,11 @@
 package mongoDB
 
+import (
+	"Open_IM/pkg/utils"
+	"go.mongodb.org/mongo-driver/mongo"
+	"go.mongodb.org/mongo-driver/mongo/options"
+)
+
 type SuperGroup struct {
 	GroupID      string   `bson:"group_id" json:"groupID"`
 	MemberIDList []string `bson:"member_id_list" json:"memberIDList"`
@@ -9,3 +15,167 @@ type UserToSuperGroup struct {
 	UserID      string   `bson:"user_id" json:"userID"`
 	GroupIDList []string `bson:"group_id_list" json:"groupIDList"`
 }
+
+func New
+
+func (d *db.DataBases) CreateSuperGroup(groupID string, initMemberIDList []string, memberNumCount int) error {
+	ctx, _ := context.WithTimeout(context.Background(), time.Duration(config.Config.Mongo.DBTimeout)*time.Second)
+	c := d.mongoClient.Database(config.Config.Mongo.DBDatabase).Collection(cSuperGroup)
+	session, err := d.mongoClient.StartSession()
+	if err != nil {
+		return utils.Wrap(err, "start session failed")
+	}
+	defer session.EndSession(ctx)
+	sCtx := mongo.NewSessionContext(ctx, session)
+	superGroup := SuperGroup{
+		GroupID:      groupID,
+		MemberIDList: initMemberIDList,
+	}
+	_, err = c.InsertOne(sCtx, superGroup)
+	if err != nil {
+		_ = session.AbortTransaction(ctx)
+		return utils.Wrap(err, "transaction failed")
+	}
+	var users []UserToSuperGroup
+	for _, v := range initMemberIDList {
+		users = append(users, UserToSuperGroup{
+			UserID: v,
+		})
+	}
+	upsert := true
+	opts := &options.UpdateOptions{
+		Upsert: &upsert,
+	}
+	c = d.mongoClient.Database(config.Config.Mongo.DBDatabase).Collection(cUserToSuperGroup)
+	//_, err = c.UpdateMany(sCtx, bson.M{"user_id": bson.M{"$in": initMemberIDList}}, bson.M{"$addToSet": bson.M{"group_id_list": groupID}}, opts)
+	//if err != nil {
+	//	session.AbortTransaction(ctx)
+	//	return utils.Wrap(err, "transaction failed")
+	//}
+	for _, userID := range initMemberIDList {
+		_, err = c.UpdateOne(sCtx, bson.M{"user_id": userID}, bson.M{"$addToSet": bson.M{"group_id_list": groupID}}, opts)
+		if err != nil {
+			_ = session.AbortTransaction(ctx)
+			return utils.Wrap(err, "transaction failed")
+		}
+
+	}
+	return err
+}
+
+func (d *db.DataBases) GetSuperGroup(groupID string) (SuperGroup, error) {
+	ctx, _ := context.WithTimeout(context.Background(), time.Duration(config.Config.Mongo.DBTimeout)*time.Second)
+	c := d.mongoClient.Database(config.Config.Mongo.DBDatabase).Collection(cSuperGroup)
+	superGroup := SuperGroup{}
+	err := c.FindOne(ctx, bson.M{"group_id": groupID}).Decode(&superGroup)
+	return superGroup, err
+}
+
+func (d *db.DataBases) AddUserToSuperGroup(groupID string, userIDList []string) error {
+	ctx, _ := context.WithTimeout(context.Background(), time.Duration(config.Config.Mongo.DBTimeout)*time.Second)
+	c := d.mongoClient.Database(config.Config.Mongo.DBDatabase).Collection(cSuperGroup)
+	session, err := d.mongoClient.StartSession()
+	if err != nil {
+		return utils.Wrap(err, "start session failed")
+	}
+	defer session.EndSession(ctx)
+	sCtx := mongo.NewSessionContext(ctx, session)
+	if err != nil {
+		return utils.Wrap(err, "start transaction failed")
+	}
+	_, err = c.UpdateOne(sCtx, bson.M{"group_id": groupID}, bson.M{"$addToSet": bson.M{"member_id_list": bson.M{"$each": userIDList}}})
+	if err != nil {
+		_ = session.AbortTransaction(ctx)
+		return utils.Wrap(err, "transaction failed")
+	}
+	c = d.mongoClient.Database(config.Config.Mongo.DBDatabase).Collection(cUserToSuperGroup)
+	var users []UserToSuperGroup
+	for _, v := range userIDList {
+		users = append(users, UserToSuperGroup{
+			UserID: v,
+		})
+	}
+	upsert := true
+	opts := &options.UpdateOptions{
+		Upsert: &upsert,
+	}
+	for _, userID := range userIDList {
+		_, err = c.UpdateOne(sCtx, bson.M{"user_id": userID}, bson.M{"$addToSet": bson.M{"group_id_list": groupID}}, opts)
+		if err != nil {
+			_ = session.AbortTransaction(ctx)
+			return utils.Wrap(err, "transaction failed")
+		}
+	}
+	_ = session.CommitTransaction(ctx)
+	return err
+}
+
+func (d *db.DataBases) RemoverUserFromSuperGroup(groupID string, userIDList []string) error {
+	ctx, _ := context.WithTimeout(context.Background(), time.Duration(config.Config.Mongo.DBTimeout)*time.Second)
+	c := d.mongoClient.Database(config.Config.Mongo.DBDatabase).Collection(cSuperGroup)
+	session, err := d.mongoClient.StartSession()
+	if err != nil {
+		return utils.Wrap(err, "start session failed")
+	}
+	defer session.EndSession(ctx)
+	sCtx := mongo.NewSessionContext(ctx, session)
+	_, err = c.UpdateOne(ctx, bson.M{"group_id": groupID}, bson.M{"$pull": bson.M{"member_id_list": bson.M{"$in": userIDList}}})
+	if err != nil {
+		_ = session.AbortTransaction(ctx)
+		return utils.Wrap(err, "transaction failed")
+	}
+	err = d.RemoveGroupFromUser(ctx, sCtx, groupID, userIDList)
+	if err != nil {
+		_ = session.AbortTransaction(ctx)
+		return utils.Wrap(err, "transaction failed")
+	}
+	_ = session.CommitTransaction(ctx)
+	return err
+}
+
+func (d *db.DataBases) GetSuperGroupByUserID(userID string) (UserToSuperGroup, error) {
+	ctx, _ := context.WithTimeout(context.Background(), time.Duration(config.Config.Mongo.DBTimeout)*time.Second)
+	c := d.mongoClient.Database(config.Config.Mongo.DBDatabase).Collection(cUserToSuperGroup)
+	var user UserToSuperGroup
+	_ = c.FindOne(ctx, bson.M{"user_id": userID}).Decode(&user)
+	return user, nil
+}
+
+func (d *db.DataBases) DeleteSuperGroup(groupID string) error {
+	ctx, _ := context.WithTimeout(context.Background(), time.Duration(config.Config.Mongo.DBTimeout)*time.Second)
+	c := d.mongoClient.Database(config.Config.Mongo.DBDatabase).Collection(cSuperGroup)
+	session, err := d.mongoClient.StartSession()
+	if err != nil {
+		return utils.Wrap(err, "start session failed")
+	}
+	defer session.EndSession(ctx)
+	sCtx := mongo.NewSessionContext(ctx, session)
+	superGroup := &SuperGroup{}
+	result := c.FindOneAndDelete(sCtx, bson.M{"group_id": groupID})
+	err = result.Decode(superGroup)
+	if err != nil {
+		session.AbortTransaction(ctx)
+		return utils.Wrap(err, "transaction failed")
+	}
+	if err = d.RemoveGroupFromUser(ctx, sCtx, groupID, superGroup.MemberIDList); err != nil {
+		session.AbortTransaction(ctx)
+		return utils.Wrap(err, "transaction failed")
+	}
+	session.CommitTransaction(ctx)
+	return nil
+}
+
+func (d *db.DataBases) RemoveGroupFromUser(ctx, sCtx context.Context, groupID string, userIDList []string) error {
+	var users []UserToSuperGroup
+	for _, v := range userIDList {
+		users = append(users, UserToSuperGroup{
+			UserID: v,
+		})
+	}
+	c := d.mongoClient.Database(config.Config.Mongo.DBDatabase).Collection(cUserToSuperGroup)
+	_, err := c.UpdateOne(sCtx, bson.M{"user_id": bson.M{"$in": userIDList}}, bson.M{"$pull": bson.M{"group_id_list": groupID}})
+	if err != nil {
+		return utils.Wrap(err, "UpdateOne transaction failed")
+	}
+	return err
+}
\ No newline at end of file
diff --git a/pkg/common/db/mysql/group_model_k.go b/pkg/common/db/mysql/group_model_k.go
index a10bd2a41..987ace740 100644
--- a/pkg/common/db/mysql/group_model_k.go
+++ b/pkg/common/db/mysql/group_model_k.go
@@ -20,6 +20,7 @@ type GroupModelInterface interface {
 
 	//mongo
 }
+
 type Group struct {
 	GroupID                string    `gorm:"column:group_id;primary_key;size:64" json:"groupID" binding:"required"`
 	GroupName              string    `gorm:"column:name;size:255" json:"groupName"`
@@ -68,11 +69,11 @@ func (*Group) UpdateByMap(ctx context.Context, groupID string, args map[string]i
 	return utils.Wrap(GroupDB.Where("group_id = ?", groupID).Updates(args).Error, "")
 }
 
-func (*Group) Update(ctx context.Context, groups []*Group) (err error) {
+func (g *Group) Update(ctx context.Context, groups []*Group, tx ...*gorm.DB) (err error) {
 	defer func() {
 		trace_log.SetCtxDebug(ctx, utils.GetFuncName(1), err, "groups", groups)
 	}()
-	return utils.Wrap(GroupDB.Updates(&groups).Error, "")
+	return utils.Wrap(getDBConn(g.DB, tx...).Updates(&groups).Error, "")
 }
 
 func (*Group) Find(ctx context.Context, groupIDs []string) (groups []*Group, err error) {