diff --git a/src/main/resources/mappers/basic/TbThreeSpanMapper.xml b/src/main/resources/mappers/basic/TbThreeSpanMapper.xml
index 56bba2f..070f66b 100644
--- a/src/main/resources/mappers/basic/TbThreeSpanMapper.xml
+++ b/src/main/resources/mappers/basic/TbThreeSpanMapper.xml
@@ -77,6 +77,7 @@
             and (tt.tower_name like concat('%',#{keyWord},'%') or
             tt2.tower_name like concat('%',#{keyWord},'%'))
         </if>
+        ORDER BY tts.update_time desc
     </select>
     <select id="getTbThreeSpanById" resultType="com.bonus.digitalSignage.basic.vo.TbThreeSpanVo">
         select id as id,pro_id as proId,span_type as spanType,tower_id as towerId,next_tower_id as nextTowerId,