diff --git a/game-server/app/servers/battle/handler/pvpHandler.ts b/game-server/app/servers/battle/handler/pvpHandler.ts
index 4558f1a88..f25ad086d 100644
--- a/game-server/app/servers/battle/handler/pvpHandler.ts
+++ b/game-server/app/servers/battle/handler/pvpHandler.ts
@@ -424,6 +424,44 @@ export class PvpHandler {
         return resResult(STATUS.SUCCESS, pick(result, ['attack', 'oppPlayers', 'buyAttackCnt', 'setAttackCnt', 'challengeCnt', 'challengeRefTime']));
     }
 
+
+    // 只保存副将
+    async saveAttackSub(msg: { heroes: { actorId: number, order: number, subHid: number }[] }, session: BackendSession) {
+        let { heroes } = msg;
+        let roleId = session.get('roleId');
+        let serverId = session.get('serverId');
+        
+        let pvpDefense = await PvpDefenseModel.findByRoleIdIncludeAll(roleId);
+        if(!pvpDefense) return resResult(STATUS.PVP_NOT_OPEN);
+
+        // 更新挑战阵容
+        let oldAttack = pvpDefense.attack?.heroes||[];
+        let scores: number[] = [];
+        for(let { actorId, order, subHid } of heroes) {
+            let oldData = oldAttack.find(cur => cur.actorId == actorId);
+            if(!oldData || oldData.order != order) return resResult(STATUS.PVP_CAN_NOT_CHANGE_HERO);
+
+            if(isHeroHidden(actorId)) return resResult(STATUS.HERO_IS_HIDDEN);
+            let heroScore = pvpDefense.heroScores.find(cur => cur.hid == actorId);
+            if(heroScore) {
+                scores.push(heroScore.score);
+            }
+            let dicHero = gameData.hero.get(actorId);
+            if(subHid && (!dicHero || dicHero.urType != 1)) return resResult(STATUS.HERO_CAN_NOT_SET_SUB);
+            if(subHid && heroes.findIndex(hero => hero.actorId == subHid) != -1) return resResult(STATUS.HERO_SUB_DUPLICATE);
+        }
+        let attack = new Attack(heroes, scores);
+        let lineupCe = await generPvpLineupCe(roleId, pvpDefense.lineupCe, attack.heroes, pvpDefense.defense?.heroes??[], []);
+        // 保存
+        pvpDefense = await PvpDefenseModel.updateInfoAndInclude(roleId, { attack, lineupCe });
+        // 返回
+        let result = new PvpDataReturn();
+        result.setPvpDefense(pvpDefense);
+
+        return resResult(STATUS.SUCCESS, pick(result, ['attack']));
+    }
+
+
     // 获取存档列表
     async getSaveData(msg: {}, session: BackendSession) {
         let roleId = session.get('roleId');
diff --git a/game-server/app/services/checkParam.ts b/game-server/app/services/checkParam.ts
index 93ebe811f..7e40d833b 100644
--- a/game-server/app/services/checkParam.ts
+++ b/game-server/app/services/checkParam.ts
@@ -735,6 +735,7 @@ export function checkRouteParam(route: string, msg: any) {
                 break;
             }
         case "battle.pvpHandler.saveAttack":
+        case "battle.pvpHandler.saveAttackSub":
             {
                 let { heroes } = msg;
                 if (!checkNaturalArray(heroes)) return false;
diff --git a/shared/consts/statusCode.ts b/shared/consts/statusCode.ts
index e839a50c4..cee76c55b 100644
--- a/shared/consts/statusCode.ts
+++ b/shared/consts/statusCode.ts
@@ -194,6 +194,7 @@ export const STATUS = {
     PVP_BUY_ATTACK_CNT_NOT_ENOUGH: { code: 20808, simStr: '购买挑战阵容次数不足' },
     PVP_SEASON_NOT_OPEN: { code: 20809, simStr: 'pvp赛季未开启' },
     PVP_CAN_NOT_SAVE_DEFENSE: { code: 20810, simStr: '结算期不可保存防守阵容' },
+    PVP_CAN_NOT_CHANGE_HERO: { code: 20811, simStr: '只可用于设置副将不可变更武将' },
 
     // 军团 20900-20999
     GUILD_AUTH_NOT_ENOUGH: { code: 20900, simStr: '权限不足' },