diff --git a/apps/dpm/tasks.py b/apps/dpm/tasks.py
index 2bc39a66..559197d6 100644
--- a/apps/dpm/tasks.py
+++ b/apps/dpm/tasks.py
@@ -15,8 +15,8 @@ def dispath_checkwork_task(checktaskset: str):
     cw.name = '风险点检查(自动派发)'
     now = timezone.now()
     cw.time_start = now
-    if cts.expire:
-        cw.time_end = now + timedelta(hours=cts.expire)
+    expire_hour = cts.expire if cts.expire else 24
+    cw.time_end = now + timedelta(hours=expire_hour)
     cw.user_duty = cts.user_duty
     cw.riskpoint = cts.riskpoint
     cw.note = cts.note