diff --git a/src/main/java/com/tenlion/twoduty/controller/api/departmentbase/DepartmentBaseController.java b/src/main/java/com/tenlion/twoduty/controller/api/departmentbase/DepartmentBaseController.java
index b946b7a..571b3e2 100644
--- a/src/main/java/com/tenlion/twoduty/controller/api/departmentbase/DepartmentBaseController.java
+++ b/src/main/java/com/tenlion/twoduty/controller/api/departmentbase/DepartmentBaseController.java
@@ -125,6 +125,9 @@ public class DepartmentBaseController extends DefaultBaseController {
             return list;
         }
         List<String> listUsers = roleUserService.listUserId(roleDTO.getRoleId());
+        if(listUsers.size() == 0){
+            return list;
+        }
         List<String> userIds =  departmentUserService.listUserId(departmentId, listUsers);
         if(userIds.size() == 0){
             return list;