diff --git a/game-server/app/services/activity/groupShopService.ts b/game-server/app/services/activity/groupShopService.ts
index ba321a515..5a5ec6107 100644
--- a/game-server/app/services/activity/groupShopService.ts
+++ b/game-server/app/services/activity/groupShopService.ts
@@ -1,11 +1,14 @@
-import { ACTIVITY_TYPE, GROUP_SHOP_PRICE_STATUS, PUSH_ROUTE } from "../../consts";
+import { ACTIVITY_TYPE, GROUP_SHOP_PRICE_STATUS, MAIL_TYPE, PUSH_ROUTE } from "../../consts";
 import { ActivityModel, ActivityModelType } from "../../db/Activity";
 import { ActivityGroupShopRecModel } from "../../db/ActivityGroupShopRec";
+import { ActivityGroupShopRefundModel, RefundRec } from "../../db/ActivityGroupShopRefund";
 import { ActivityGroupShopUserRecModel } from "../../db/ActivityGroupShopUserRec";
 import { GroupShopData } from "../../domain/activityField/groupShopField";
 import { RewardInter } from "../../pubUtils/interface";
+import { sendMailByContent } from "../mailService";
 import { sendMessageToGroupShopWithSuc } from "../pushService";
 import { getRoleCreateTime, getServerCreateTime } from "../redisService";
+import { getGoldObject } from "../role/rewardService";
 import { getActivityById } from "./activityService";
 
 /**
@@ -76,13 +79,33 @@ export async function setGroupShopToSetSum(arr: { activityId: number, itemId: nu
 export async function refundGroupShop() {
     let activities = await ActivityModel.findActivityByType(ACTIVITY_TYPE.GROUP_SHOP);
 
-    let recs = new Map<string, { activityId: number, itemId: number, reward: RewardInter[] }[]>();
     for(let activityData of activities) {
+        let hasRefund = await ActivityGroupShopRefundModel.check(activityData.activityId);
+        if(!hasRefund) continue;
+
+        let recs = new Map<string, { itemId: number, diff: number }[]>();
         let playerData = await getGroupShopServerData(activityData);
+        if(playerData.endTime >= Date.now()) continue;
+
         let items = playerData.items||[];
         for(let item of items) {
             let playerRecords = await ActivityGroupShopUserRecModel.findByPrice(activityData.activityId, item.id, item.getCurDiscount().price);
+            for(let { roleId, records } of playerRecords) {
+                for(let { price, buyCnt } of records) {
+                    if(price <= item.getCurDiscount().price) continue;
+                    let diff = (price - item.getCurDiscount().price) * buyCnt;
 
+                    if(!recs.has(roleId)) recs.set(roleId, []);
+                    recs.get(roleId).push({ itemId: item.id, diff });
+                }
+            }
         }
+        let refundRecs: RefundRec[] = [];
+        for(let [ roleId, arr ] of recs) {
+            let reward = arr.map(({ diff }) => getGoldObject(diff));
+            await sendMailByContent(MAIL_TYPE.GROUP_SHOP_REFUND, roleId, { goods: reward });
+            refundRecs.push(...arr.map(cur => ({ roleId, ...cur })));
+        }
+        await ActivityGroupShopRefundModel.refund(activityData.activityId, refundRecs);
     }
 }
\ No newline at end of file
diff --git a/shared/consts/constModules/mailConst.ts b/shared/consts/constModules/mailConst.ts
index b613377b9..748cfa5b7 100644
--- a/shared/consts/constModules/mailConst.ts
+++ b/shared/consts/constModules/mailConst.ts
@@ -60,6 +60,7 @@ export enum MAIL_TYPE {
     LADDER = 30,     // 名将擂台
     GUILD_MAIL = 31, // 军团邮件
     REBATE = 32,    // 返利邮件
+    GROUP_SHOP_REFUND = 33,    // 退费
 };
 
 export const SEND_NAME = '系统';
diff --git a/shared/db/ActivityGroupShopRefund.ts b/shared/db/ActivityGroupShopRefund.ts
new file mode 100644
index 000000000..1b40cf911
--- /dev/null
+++ b/shared/db/ActivityGroupShopRefund.ts
@@ -0,0 +1,41 @@
+import BaseModel from './BaseModel';
+import { index, getModelForClass, prop, DocumentType } from '@typegoose/typegoose';
+
+export class RefundRec {
+  @prop({ required: true })
+  roleId: string;
+
+  @prop({ required: true })
+  itemId: number;
+
+  @prop({ required: true })
+  diff: number;
+}
+
+/**
+  * 活动系统 - 团购玩家记录
+*/
+@index({ activityId: 1 })
+
+export default class Activity_Group_Shop_Refund extends BaseModel {
+
+  @prop({ required: true })
+  activityId: number;				    // 活动Id
+
+  @prop({ required: true, type: RefundRec, _id: false })
+  refundRec: RefundRec[];				    // 是否退好费了
+
+  public static async check(activityId: number) {
+    return await ActivityGroupShopRefundModel.exists({ activityId });
+  }
+
+  public static async refund(activityId: number, refundRec: RefundRec[]) {
+    let result: ActivityGroupShopRefundRecType = await ActivityGroupShopRefundModel.findOneAndUpdate({ activityId }, { $set: { refundRec } },  { upsert: true, new: true }).lean();
+    return result;
+  }
+}
+
+export const ActivityGroupShopRefundModel = getModelForClass(Activity_Group_Shop_Refund);
+
+export interface ActivityGroupShopRefundRecType extends Pick<DocumentType<Activity_Group_Shop_Refund>, keyof Activity_Group_Shop_Refund> { }
+export type ActivityGroupShopRefundRecTypeParam = Partial<ActivityGroupShopRefundRecType>; // 将所有字段变成可选项
\ No newline at end of file
diff --git a/shared/db/ActivityGroupShopUserRec.ts b/shared/db/ActivityGroupShopUserRec.ts
index 375631eda..67cf5c432 100644
--- a/shared/db/ActivityGroupShopUserRec.ts
+++ b/shared/db/ActivityGroupShopUserRec.ts
@@ -30,9 +30,6 @@ export class GroupShopBuyRecord {
   @prop({ required: true })
   buyCnt: number;			           // 购买次数
 
-  @prop({ required: true })
-  refundPrice: number;	        // 退费价格
-
   constructor(curDiscount: GroupShopDiscount, buyCnt: number) {
     this.time = nowSeconds();
     if(curDiscount) {
@@ -42,7 +39,6 @@ export class GroupShopBuyRecord {
       this.price = curDiscount.price;
     }
     this.buyCnt = buyCnt;
-    this.refundPrice = 0;
   }
 }
 
diff --git a/shared/resource/jsons/dic_email_content.json b/shared/resource/jsons/dic_email_content.json
index 36d69ed72..4df681198 100644
--- a/shared/resource/jsons/dic_email_content.json
+++ b/shared/resource/jsons/dic_email_content.json
@@ -229,5 +229,12 @@
         "sendName": "您忠诚的小跟班",
         "content": "亲爱的主公，欢迎回来！感谢您在封测期间的支持，您在测试期间共充值%d元，现将获得%d元宝返还。请查收",
         "time": 720
+    },
+    {
+        "id": 33,
+        "title": "&",
+        "sendName": "您忠诚的小跟班",
+        "content": "退费",
+        "time": 720
     }
 ]
\ No newline at end of file