diff --git a/game-server/app/servers/battle/handler/ladderHandler.ts b/game-server/app/servers/battle/handler/ladderHandler.ts
index 92eafde83..b1afd0ff3 100644
--- a/game-server/app/servers/battle/handler/ladderHandler.ts
+++ b/game-server/app/servers/battle/handler/ladderHandler.ts
@@ -279,7 +279,7 @@ export class LadderHandler {
             return dbHero && new LadderDefenseHero(cur, dbHero._id, dbHero.ce);
         }).filter(cur => cur);
         let defense = new LadderDefense(defenseHeroes, warId);
-        ladderData = await LadderMatchModel.updateByRoleId(roleId, { defense });
+        ladderData = await LadderMatchModel.updateByRoleId(roleId, { defense, hasDefense: true });
         // 返回
         let result = new LadderDataReturn();
         result.setLadderData(ladderData);
diff --git a/shared/db/LadderMatch.ts b/shared/db/LadderMatch.ts
index 3e039e1de..a56f620be 100644
--- a/shared/db/LadderMatch.ts
+++ b/shared/db/LadderMatch.ts
@@ -24,6 +24,8 @@ export default class LadderMatch extends BaseModel {
 
     @prop({ required: true, default: null, _id: false })
     defense: LadderDefense;
+    @prop({ required: true, default: false })
+    hasDefense: boolean;                    // 购买次数
 
     @prop({ required: true, type: LadderOppPlayerInDB, default: [], _id: false })
     oppPlayers: LadderOppPlayerInDB[];
@@ -147,7 +149,7 @@ export default class LadderMatch extends BaseModel {
 
     public static async updateCe(roleId: string, hid: number, ce: number) {   
         const rec: LadderMatchType = await LadderMatchModel.findOneAndUpdate(
-            { roleId, defense: { $exists: false } }, 
+            { roleId, hasDefense: true }, 
             { $set: { 'defense.heroes.$[t].ce': ce } },
             { arrayFilters: [{"t.actorId": hid}] }).lean();
         return rec