diff --git a/tz/competition/competition-service/src/main/java/com/tz/platform/competitiion/job/biz/RankingBiz.java b/tz/competition/competition-service/src/main/java/com/tz/platform/competitiion/job/biz/RankingBiz.java
index 6fdb280..d7fcd61 100644
--- a/tz/competition/competition-service/src/main/java/com/tz/platform/competitiion/job/biz/RankingBiz.java
+++ b/tz/competition/competition-service/src/main/java/com/tz/platform/competitiion/job/biz/RankingBiz.java
@@ -234,7 +234,11 @@ public class RankingBiz {
             }
         });
         computeScore(rankingList,currentTask,competition,baseRatio);
-        computeRanking(rankingList,currentTask,competition.getTeamMaxCount(),now);
+        if(competition.getTeamMaxCount() == null){
+            computeRanking(rankingList,currentTask,1,now);
+        }else{
+            computeRanking(rankingList,currentTask,competition.getTeamMaxCount(),now);
+        }
         computeMemberRank(currentTask.getCompetitionId(),currentTask.getStageId(),competition.getTeamMaxCount());
         competition.setUpdateRankDate(now);
         competitionDao.save(competition);