diff --git a/apps/enm/tasks.py b/apps/enm/tasks.py
index eaf63c6c..2947b33a 100644
--- a/apps/enm/tasks.py
+++ b/apps/enm/tasks.py
@@ -404,8 +404,11 @@ def cal_enstat(type, sflogId, mgroupId, year, month, day, hour, year_s, month_s,
         if type != 'hour_s' and 'run_hour' in this_cal_attrs:
             enstat.total_hour_now, enstat.shut_hour = get_total_hour_now_and_shut_hour(enstat)
             enstat.run_hour = enstat.total_hour_now - enstat.shut_hour
-            enstat.run_rate = (enstat.run_hour / enstat.total_hour_now)*100
-            enstat.production_hour = enstat.total_production / enstat.total_hour_now
+            try:
+                enstat.run_rate = (enstat.run_hour / enstat.total_hour_now)*100
+                enstat.production_hour = enstat.total_production / enstat.total_hour_now
+            except ZeroDivisionError:
+                    pass
             enstat.save()
     enstat.save()