diff --git a/apps/wpm/tasks.py b/apps/wpm/tasks.py
index 28fa85a0..f0968663 100644
--- a/apps/wpm/tasks.py
+++ b/apps/wpm/tasks.py
@@ -73,8 +73,12 @@ def cal_exp_duration_sec(stlogId: str='', all=False, now: datetime=None):
         now = timezone.now()
     for stlog in stlogs:
         if stlog.duration_sec is None and stlog.end_time:
-            stlog.duration_sec = (stlog.end_time-stlog.start_time).total_seconds()
-            stlog.save()
+            duration_sec = (stlog.end_time-stlog.start_time).total_seconds()
+            if duration_sec <= 10:
+                stlog.delete()
+            else:
+                stlog.duration_sec = duration_sec
+                stlog.save()
         is_shutdown_stlog = True
         if stlog.is_shutdown is False:
             is_shutdown_stlog = False