diff --git a/doc/api.md b/doc/api.md
index 79f8c3d..d6044f5 100644
--- a/doc/api.md
+++ b/doc/api.md
@@ -215,6 +215,7 @@
 | 字段     | 说明                                   |
 | -------- | -------------------------------------- |
 | shop | 店铺id, 比如 607ff59d4a4e16687a3b7079 		|
+| eid | 测验id, 比如 609e13eeccc78154ac683583 		|
 
 3. Response: JSON
 
diff --git a/src/api/controllers/exam.controller.ts b/src/api/controllers/exam.controller.ts
index ec71a37..3aedca6 100644
--- a/src/api/controllers/exam.controller.ts
+++ b/src/api/controllers/exam.controller.ts
@@ -18,14 +18,17 @@ class ExamController extends BaseController {
   @role('anon')
   @router('post /api/:accountid/exam/list')
   async list(req, res) {
-    let { shop, accountid } = req.params
+    let { shop, accountid, eid } = req.params
     if (!shop || !isObjectId(shop)) {
       throw new ZError(10, '没有店铺id或者店铺id格式不正确, 测试使用: 607ff59d4a4e16687a3b7079')
     }
     const now = Date.now()
-    let record = await ShopExam.findOne({shop, beginTime: {$lte: now}, endTime: {$gte: now}, active: true, deleted: false})
+    if (!eid) {
+      throw new ZError(12, '需要指定挑战的id')
+    }
+    let record = await ShopExam.findById(eid)
     if (!record) {
-      throw new ZError(11, '暂时没有可参加的测试')
+      throw new ZError(11, '暂时没有可参加的挑战')
     }
     let params = {}
     if (record.qtypes && record.qtypes.length > 0) {