diff --git a/doc/_common.py b/doc/_common.py
index d01299a5..33b79f4d 100644
--- a/doc/_common.py
+++ b/doc/_common.py
@@ -306,7 +306,8 @@ class Mission(object):
                  ['type', '', '类型 0：武器 1：英雄'],
                  ['id', '', 'id'],
              ],
-             '悬赏任务对象列表']
+             '悬赏任务对象列表'],
+            ['lefttime', 0, '剩余时间(悬赏任务)'],
         ]
 
 class SeasonCardGiftPackage(object):
diff --git a/webapp/services/MissionService.php b/webapp/services/MissionService.php
index 9c4e30c8..b6e7a1a7 100644
--- a/webapp/services/MissionService.php
+++ b/webapp/services/MissionService.php
@@ -91,7 +91,8 @@ class MissionService extends BaseService {
             'current' => 0,
             'target' => getXVal($missionMeta, 'target', 1),
             'state' => Mission::NOT_FINISHED_STATE,
-            'objects' => array()
+            'objects' => array(),
+            'lefttime' => 0,
         );
         if ($missionDb) {
             if ($missionMeta['type'] == mt\Task::DAILY_MISSON_TYPE) {
@@ -590,6 +591,7 @@ class MissionService extends BaseService {
             if ($mission['mission_id'] == $missionDto['mission_id']) {
                 if ($mission['sendtime'] > 0) {
                     $leftTime = max(0, myself()->_getNowTime() - $mission['sendtime']);
+                    $missionDto['lefttime'] = $leftTime;
                     if ($leftTime > 0) {
                         $missionDto['state'] = 0;
                     } else {