diff --git a/internal/rpc/organization/organization.go b/internal/rpc/organization/organization.go
index 7f1de1cde..d9f503d69 100644
--- a/internal/rpc/organization/organization.go
+++ b/internal/rpc/organization/organization.go
@@ -140,6 +140,16 @@ func (s *organizationServer) GetSubDepartment(ctx context.Context, req *rpc.GetS
 		v1 := open_im_sdk.Department{}
 		utils.CopyStructFields(&v1, v)
 		log.Debug(req.OperationID, "src ", v, "dst ", v1)
+		err, v1.MemberNum = imdb.GetDepartmentMemberNum(v1.DepartmentID)
+		if err != nil {
+			log.Error(req.OperationID, "GetDepartmentMemberNum failed ", err.Error(), v1.DepartmentID)
+			continue
+		}
+		err, v1.SubDepartmentNum = imdb.GetSubDepartmentNum(v1.DepartmentID)
+		if err != nil {
+			log.Error(req.OperationID, "GetSubDepartmentNum failed ", err.Error(), v1.DepartmentID)
+			continue
+		}
 		resp.DepartmentList = append(resp.DepartmentList, &v1)
 	}
 	log.NewInfo(req.OperationID, utils.GetSelfFuncName(), " rpc return ", *resp)
diff --git a/pkg/common/db/mysql_model/im_mysql_model/organization_model.go b/pkg/common/db/mysql_model/im_mysql_model/organization_model.go
index c3005fcec..2eacf7a44 100644
--- a/pkg/common/db/mysql_model/im_mysql_model/organization_model.go
+++ b/pkg/common/db/mysql_model/im_mysql_model/organization_model.go
@@ -2,6 +2,7 @@ package im_mysql_model
 
 import (
 	"Open_IM/pkg/common/db"
+	"Open_IM/pkg/utils"
 	"time"
 )
 
@@ -207,3 +208,31 @@ func GetAllOrganizationUserID() (error, []string) {
 	var result []string
 	return dbConn.Model(&OrganizationUser).Pluck("user_id", &result).Error, result
 }
+
+func GetDepartmentMemberNum(departmentID string) (error, uint32) {
+	dbConn, err := db.DB.MysqlDB.DefaultGormDB()
+	if err != nil {
+		return utils.Wrap(err, "DefaultGormDB failed"), 0
+	}
+	var number uint32
+	err = dbConn.Table("department_members").Where("department_id=?", departmentID).Count(&number).Error
+	if err != nil {
+		return utils.Wrap(err, ""), 0
+	}
+	return nil, number
+
+}
+
+func GetSubDepartmentNum(departmentID string) (error, uint32) {
+	dbConn, err := db.DB.MysqlDB.DefaultGormDB()
+	if err != nil {
+		return utils.Wrap(err, "DefaultGormDB failed"), 0
+	}
+	var number uint32
+	err = dbConn.Table("departments").Where("parent_id=?", departmentID).Count(&number).Error
+	if err != nil {
+		return utils.Wrap(err, ""), 0
+	}
+	return nil, number
+
+}