diff --git a/game-server/app/services/comBattleService.ts b/game-server/app/services/comBattleService.ts
index b68e8310b..0ebac0354 100644
--- a/game-server/app/services/comBattleService.ts
+++ b/game-server/app/services/comBattleService.ts
@@ -6,7 +6,7 @@ import { RoleStatus, ComBattleTeamModel } from './../db/ComBattleTeam';
 import { getBluePrtByQuality, getComBtlSetByQuality, getRewardByBlueprtId, getWarById, getWarIdByBlueprtId, comBtlRangeInfo } from "../pubUtils/gamedata";
 import { getRandEelm, getRandValue, resResult, ratioReward, getRandValueByMinMax, getRandomWithWeight, decodeStr } from "../pubUtils/util";
 import { getRandRobot } from "./battleService";
-import { difference, drop } from 'underscore';
+import { difference, omit } from 'underscore';
 import { Channel } from 'pinus';
 import { TREASURE } from '../pubUtils/dicParam';
 
@@ -373,7 +373,7 @@ export async function incEquipPrintDrop(roleSt: RoleStatus) {
     }
 
     const dropResult = incEquipPrintDropData(roleSt, dropRec);
-    dropRec = await EquipPrintDropModel.updateDoc(roleId, dropRec);
+    dropRec = await EquipPrintDropModel.updateDoc(roleId, omit(dropRec, ['_id', 'createdAt', 'updatedAt']));
     return { dropResult, dropRec };
 }