diff --git a/apps/ecm/service.py b/apps/ecm/service.py
index 430434ab..461ee913 100644
--- a/apps/ecm/service.py
+++ b/apps/ecm/service.py
@@ -362,8 +362,9 @@ def dispatch_dahua_event(data: dict):
         event.happen_time = happen_time
         event.save()
         for i in cates:
-            Eventdo.objects.get_or_create(cate=i, event=event, defaults={
-                'cate': i,
+            cate = EventCate.objects.get(id=i)
+            Eventdo.objects.get_or_create(cate=cate, event=event, defaults={
+                'cate': cate,
                 'event': event
             })
     if event: