diff --git a/app/services/homeworks_service.rb b/app/services/homeworks_service.rb
index 59bd5dad4..a21614efc 100644
--- a/app/services/homeworks_service.rb
+++ b/app/services/homeworks_service.rb
@@ -328,10 +328,13 @@ class HomeworksService
       work.late_penalty = work.work_status == 2 ? homework.late_penalty : 0
       work.commit_time = myshixun.created_at > setting_time.publish_time ? setting_time.publish_time : myshixun.created_at
       work.myshixun_id = myshixun.id
-      work.update_time = if myshixun_endtime.present?
-                           myshixun_endtime > homework_end_or_late_time ? homework_end_or_late_time : myshixun_endtime
+      work.update_time = if myshixun_endtime.present? && myshixun_endtime <= homework_end_or_late_time
+                           myshixun_endtime
+                         elsif myshixun.updated_at > homework_end_or_late_time
+                           last_pass_time = games.select{|game| game.status == 2 && game.end_time < homework_end_or_late_time}.map(&:end_time).max
+                           last_pass_time.present? ? last_pass_time : myshixun.created_at
                          else
-                           myshixun.updated_at > homework_end_or_late_time ? homework_end_or_late_time : myshixun.updated_at
+                           myshixun.updated_at
                          end
 
       work.final_score = final_score