diff --git a/ms-dal/src/main/resources/mapper/DoudianMsgParseQueueMapper.xml b/ms-dal/src/main/resources/mapper/DoudianMsgParseQueueMapper.xml
index e1d45ac3..439561fc 100644
--- a/ms-dal/src/main/resources/mapper/DoudianMsgParseQueueMapper.xml
+++ b/ms-dal/src/main/resources/mapper/DoudianMsgParseQueueMapper.xml
@@ -32,6 +32,7 @@
         <include refid="Base_Column_List" />
         from doudian_msg_parse_queue
         where locked = 0
+        limit 1
     </select>
 
     <delete id="deleteByPrimaryKey" parameterType="java.lang.Long">