diff --git a/app/services/games_service.rb b/app/services/games_service.rb
index 57d0e829..956e5809 100644
--- a/app/services/games_service.rb
+++ b/app/services/games_service.rb
@@ -930,7 +930,8 @@ class GamesService
         end
         #end
         myshixun_job = Base64.urlsafe_encode64("myshixun_#{myshixun.id}")
-        StudentWork.where(:myshixun_id => myshixun.id).update_all(:myshixun_id => nil, :work_status => 0)
+        StudentWork.where(:myshixun_id => myshixun.id).update_all(:myshixun_id => 0, :work_status => 0, :work_score => nil, :final_score => nil,
+                                                                  :cost_time => 0, :update_time => nil)
         # myshixun.destroy
         myshixun.delete
         # 主从复制出现脏读的情况