diff --git a/zc-business/src/main/resources/mapper/business/DcPerceivedEventsWarningMapper.xml b/zc-business/src/main/resources/mapper/business/DcPerceivedEventsWarningMapper.xml
index 410cf1a3..630214f9 100644
--- a/zc-business/src/main/resources/mapper/business/DcPerceivedEventsWarningMapper.xml
+++ b/zc-business/src/main/resources/mapper/business/DcPerceivedEventsWarningMapper.xml
@@ -46,11 +46,12 @@
         ORDER BY time
     </select>
     <select id="selectDailyCumulativeMonth" resultType="java.util.HashMap">
-        SELECT DATE_FORMAT(create_time, '%Y-%m-%d %H') AS time, COUNT(*) AS number
+        SELECT HOUR(create_time) AS time, COUNT(*) AS number
         FROM dc_warning
-        WHERE MONTH(create_time) = MONTH(CURDATE()) AND YEAR(create_time) = YEAR(CURDATE())
-        GROUP BY time
-        ORDER BY time;
+        WHERE MONTH(create_time) = MONTH(CURDATE())
+          AND YEAR(create_time) = YEAR(CURDATE())
+        GROUP BY HOUR(create_time)
+        ORDER BY HOUR(create_time);
     </select>
     <select id="selectWarningSourceGroup" resultType="java.util.HashMap">
         SELECT warning_source warningSource,COUNT(*) AS number FROM dc_warning