diff --git a/apps/mtm/views.py b/apps/mtm/views.py
index 19019251..abafd5c2 100644
--- a/apps/mtm/views.py
+++ b/apps/mtm/views.py
@@ -192,7 +192,7 @@ class ProcessViewSet(CustomModelViewSet):
     search_fields = ['name', 'cate']
     filterset_fields = {
         "cate": ['exact'],
-        "parent": ['isnull']
+        "parent": ['isnull', "exact"]
     }
     ordering = ['sort', 'create_time']