diff --git a/zc-business/src/main/resources/mapper/business/DcPerceivedEventsWarningMapper.xml b/zc-business/src/main/resources/mapper/business/DcPerceivedEventsWarningMapper.xml
index 39edf1da..da04178f 100644
--- a/zc-business/src/main/resources/mapper/business/DcPerceivedEventsWarningMapper.xml
+++ b/zc-business/src/main/resources/mapper/business/DcPerceivedEventsWarningMapper.xml
@@ -43,6 +43,7 @@
             <if test="startTime != null  and endTime != null ">
              and warning.warning_time between #{startTime} and #{endTime}</if>
         </where>
+       order by warning.warning_time desc
     </select>
     <select id="selectSectionPerceivedEventsList" resultType="hashmap">
         select s.section_name sectionName,