diff --git a/apps/enm/filters.py b/apps/enm/filters.py
index 08dad696..c9efef29 100644
--- a/apps/enm/filters.py
+++ b/apps/enm/filters.py
@@ -21,7 +21,7 @@ class MpointStatFilter(filters.FilterSet):
             "mpoint__need_display": ["exact"],
             "mpoint__mgroup__belong_dept": ["exact"],
             "mpoint__ep_belong": ["exact"],
-            "mpoint__ep_monitored": ["exact"],
+            "mpoint__ep_monitored": ["exact", "isnull"],
             "mpoint__ep_monitored__power_kw": ["exact", "gte"],
             "sflog": ["exact"],
             "hour": ["exact"],