diff --git a/application/api/model/Sign.php b/application/api/model/Sign.php
index d6c86a0..82c6059 100644
--- a/application/api/model/Sign.php
+++ b/application/api/model/Sign.php
@@ -430,7 +430,7 @@ class Sign extends Model
                 $before_pit_number = db::name('vs_room_pit')
                     ->where(['room_id' => $room_id,'pit_number' => $on_pit_user['before_pit_number']])->value('user_id');
 
-                if($before_pit_number){
+                if($before_pit_number && $on_pit_user['before_pit_number'] != 0){
                     //之前位置有人，直接下麦
                     model('api/RoomPit')->DownPit($on_pit_user['user_id'], $room_id, 2);
                 } else {