diff --git a/groups/views.py b/groups/views.py
index dcae16e4..3b35727e 100644
--- a/groups/views.py
+++ b/groups/views.py
@@ -509,7 +509,7 @@ def exam_rate(request):
         # 参加考试员工数
         testuser_count = base.values('user').distinct().count()
         # 参考率
-        rate1 = testuser_count/user_count
+        rate1 = testuser_count/user_count if user_count else 0
         # 考试总数
         # test_count = base.count()
         # 满分人数