diff --git a/apps/em/services.py b/apps/em/services.py
index 92705e55..01ff1ad0 100644
--- a/apps/em/services.py
+++ b/apps/em/services.py
@@ -26,8 +26,7 @@ def daoru_equipment(path:str):
                         'parameter': parameter,
                         'place': place,
                         'power_kw': power_kw,
-                        'belong_dept': Dept.objects.get(name=belong_dept_name),
-                        'mgroup': Mgroup.objects.get(name=mgroup_name)
+                        'belong_dept': Dept.objects.get(name=belong_dept_name) if belong_dept_name else None,
+                        'mgroup': Mgroup.objects.get(name=mgroup_name) if mgroup_name else None
                   }
             )
-            
\ No newline at end of file