diff --git a/src/dao/medium_dao.go b/src/dao/medium_dao.go
index f175814..e65cea2 100644
--- a/src/dao/medium_dao.go
+++ b/src/dao/medium_dao.go
@@ -17,6 +17,7 @@ type MediumDao interface {
 	FindSuperAdmin(username, memo string, page, limit int) (list []model.Medium, total int64, err error)
 	FindSuperAdminByMediumId(mediumId string, page, limit int) (list []model.Medium, total int64, err error)
 	GetSuperAdmin(mediumId int) (list *model.Medium)
+	FindAllSuperAdmin() (list *[]model.Medium)
 }
 
 type MediumWithRolePermissionGroup struct {