diff --git a/apps/pm/filters.py b/apps/pm/filters.py
index df38d6f7..51b02a4f 100644
--- a/apps/pm/filters.py
+++ b/apps/pm/filters.py
@@ -6,6 +6,7 @@ from django.db.models import F
 
 
 class UtaskFilter(filters.FilterSet):
+    tag = filters.CharFilter(method='filter_tag', label='done, not_done')
 
     class Meta:
         model = Utask
@@ -28,6 +29,13 @@ class UtaskFilter(filters.FilterSet):
         queryset = super().filter_queryset(queryset)
         return queryset.distinct()
 
+    def filter_tag(self, queryset, name, value):
+        if value == 'done':
+            queryset = queryset.filter(count_ok__gte=F('count'))
+        elif value == 'not_done':
+            queryset = queryset.filter(count_ok__lt=F('count'))
+        return queryset
+
 
 class MtaskFilter(filters.FilterSet):
     tag = filters.CharFilter(method='filter_tag')