diff --git a/doc/api.md b/doc/api.md
index ea6b80c..a0453bc 100644
--- a/doc/api.md
+++ b/doc/api.md
@@ -117,6 +117,7 @@
         "roomId": "mysWNuFnY",	//房间id
         "beginTime": 1619689073034, // 游戏的开始时间
         "sessionId": "adfadf"		// 当前用户在该房间的sessionId, 如果有该字段, 客户端在joinById的时候须带上该字段
+        "session": "608baeea9d0fe70ccd54cf9c" // 当前局的id,提交答案时必须上报该字段
     }
 ```
 
diff --git a/src/api/controllers/puzzle.controller.ts b/src/api/controllers/puzzle.controller.ts
index 8d4012b..f059abd 100644
--- a/src/api/controllers/puzzle.controller.ts
+++ b/src/api/controllers/puzzle.controller.ts
@@ -152,6 +152,7 @@ class PuzzleController extends BaseController {
 
     let roomId = ''
     let sessionId = ''
+    let sessionMatch = ''
     let beginTime = 0
     let result = new RoomState().isLock(shop)
     try {
@@ -163,6 +164,7 @@ class PuzzleController extends BaseController {
         let history = await PuzzleSession.findOne({ shop, status: {$in: [0, 1]}, type: 1 })
         if (history && !history.hasExpired()) {
           beginTime = history.begin
+          sessionMatch = history.id
           if (!history.members.has(accountid)) {
             let rsp = await joinRoom({roomId: history.room})
             if (rsp.status != 200) {
@@ -184,7 +186,6 @@ class PuzzleController extends BaseController {
             new RoomState().unlock(shop)
             return
           }
-
         } else {
           let rsp = await createRoom(data)
           if (rsp.status != 200) {
@@ -205,6 +206,7 @@ class PuzzleController extends BaseController {
           history.expire = history.begin + (100 || 90) * 1000
           history.type = 1
           await history.save()
+          sessionMatch = history.id
           new Schedule().beginSchedule(beginSecond, async function () {
             await startGame(roomId, history.id)
           }, shop)
@@ -218,6 +220,6 @@ class PuzzleController extends BaseController {
       throw new ZError(12, 'error create room')
     }
 
-    return { roomId, beginTime,sessionId }
+    return { roomId, beginTime,sessionId, session: sessionMatch }
   }
 }