diff --git a/internal/business/domain/user/repo/im_package_repo.go b/internal/business/domain/user/repo/im_package_repo.go
index 1c2744a..2bc9016 100644
--- a/internal/business/domain/user/repo/im_package_repo.go
+++ b/internal/business/domain/user/repo/im_package_repo.go
@@ -9,8 +9,8 @@ type imPackageRepo struct{}
 var ImPackageRepo = new(imPackageRepo)
 
 // Get 获取单个套餐包
-func (*imPackageRepo) Get(masterId int64) (*model.ImPackage, error) {
-	imPackage, err := ImPackageDao.Get(masterId)
+func (*imPackageRepo) Get(id int64) (*model.ImPackage, error) {
+	imPackage, err := ImPackageDao.Get(id)
 	if err != nil {
 		return nil, err
 	}
diff --git a/internal/logic/api/logic_ext.go b/internal/logic/api/logic_ext.go
index 88953a2..3a445f5 100644
--- a/internal/logic/api/logic_ext.go
+++ b/internal/logic/api/logic_ext.go
@@ -250,8 +250,12 @@ func (s *LogicExtServer) AddGroupMembers(ctx context.Context, in *pb.AddGroupMem
 	if err != nil {
 		return nil, err
 	}
+	masterId, err := grpclib.GetCtxMasterId(ctx)
+	if err != nil {
+		return nil, err
+	}
 
-	userIds, err := app.GroupApp.AddMembers(ctx, userId, in.GroupId, in.UserIds)
+	userIds, err := app.GroupApp.AddMembers(ctx, userId, in.GroupId, in.UserIds, masterId)
 	return &pb.AddGroupMembersResp{UserIds: userIds}, err
 }
 
diff --git a/internal/logic/app/group_app.go b/internal/logic/app/group_app.go
index 6a9cf05..05fd772 100644
--- a/internal/logic/app/group_app.go
+++ b/internal/logic/app/group_app.go
@@ -5,6 +5,7 @@ import (
 	"database/sql"
 	"errors"
 	"gim/internal/business/comm/utils"
+	repo2 "gim/internal/business/domain/user/repo"
 	"gim/internal/logic/domain/group/model"
 	"gim/internal/logic/domain/group/repo"
 	"gim/pkg/db"
@@ -129,11 +130,23 @@ func (*groupApp) Update(ctx context.Context, userId int64, update *pb.UpdateGrou
 }
 
 // AddMembers 添加群组成员
-func (*groupApp) AddMembers(ctx context.Context, userId, groupId int64, userIds []int64) ([]int64, error) {
+func (*groupApp) AddMembers(ctx context.Context, userId, groupId int64, userIds []int64, masterId string) ([]int64, error) {
 	group, err := repo.GroupRepo.Get(groupId)
 	if err != nil {
 		return nil, err
 	}
+	master, err := repo2.MasterRepo.Get(utils.StrToInt64(masterId))
+	if err != nil {
+		return nil, err
+	}
+	imPackage, err := repo2.ImPackageRepo.Get(master.PackageId)
+	if err != nil {
+		return nil, err
+	}
+	if imPackage.GroupNum <= int64(group.UserNum) {
+		return nil, errors.New("群人员数量已满!")
+	}
+
 	existIds, addedIds, err := group.AddMembers(ctx, userIds)
 	if err != nil {
 		return nil, err