diff --git a/securitycontrol-model/securitycontrol-screen/src/main/java/com/securitycontrol/screen/domain/DeviceEnergyAnalysis.java b/securitycontrol-model/securitycontrol-screen/src/main/java/com/securitycontrol/screen/domain/DeviceEnergyAnalysis.java
index 815c865..59801b2 100644
--- a/securitycontrol-model/securitycontrol-screen/src/main/java/com/securitycontrol/screen/domain/DeviceEnergyAnalysis.java
+++ b/securitycontrol-model/securitycontrol-screen/src/main/java/com/securitycontrol/screen/domain/DeviceEnergyAnalysis.java
@@ -78,4 +78,6 @@ public class DeviceEnergyAnalysis {
      * 用于区分所属工程，可作为查询过滤条件
      */
     private String proId;
+
+    private String lastRecordDate;
 }
diff --git a/securitycontrol-model/securitycontrol-screen/src/main/resources/mapper/DeviceEnergyAnalysisMapper.xml b/securitycontrol-model/securitycontrol-screen/src/main/resources/mapper/DeviceEnergyAnalysisMapper.xml
index ca13586..5be290e 100644
--- a/securitycontrol-model/securitycontrol-screen/src/main/resources/mapper/DeviceEnergyAnalysisMapper.xml
+++ b/securitycontrol-model/securitycontrol-screen/src/main/resources/mapper/DeviceEnergyAnalysisMapper.xml
@@ -28,20 +28,28 @@
     </select>
 
     <select id="selectAnomalyByDateRange" resultType="com.securitycontrol.screen.domain.DeviceEnergyAnalysis">
-        SELECT id                 AS id,
-               device_name        AS deviceName,
-               stat_date          AS statDate,
-               consumption_kwh    AS consumptionKwh,
-               renewable_used_kwh AS renewableUsedKwh,
-               anomaly_level      AS anomalyLevel,
-               anomaly_desc       AS anomalyDesc
-        FROM device_energy_analysis
-        WHERE anomaly_flag = 1
-          AND stat_date BETWEEN #{startDate} AND #{endDate}
-          and pro_id = #{proId}
-        ORDER BY
-            FIELD(anomaly_level, 'danger', 'warning', 'info') ASC,
-            stat_date ASC;
+        SELECT dea.id                           AS id,
+               dea.device_name                  AS deviceName,
+               dea.stat_date                    AS statDate,
+               dea.consumption_kwh              AS consumptionKwh,
+               dea.renewable_used_kwh           AS renewableUsedKwh,
+               dea.anomaly_level                AS anomalyLevel,
+               dea.anomaly_desc                 AS anomalyDesc,
+
+               -- 上次记录时间：同一设备、当前日期之前的最大 stat_date
+               (SELECT MAX(prev.stat_date)
+                FROM device_energy_analysis prev
+                WHERE prev.device_name = dea.device_name
+                  AND prev.stat_date &lt; dea.stat_date
+                  AND prev.pro_id = dea.pro_id) AS lastRecordDate
+
+        FROM device_energy_analysis dea
+        WHERE dea.anomaly_flag = 1
+          AND dea.stat_date BETWEEN #{startDate} AND #{endDate}
+          AND dea.pro_id = #{proId}
+        ORDER BY FIELD(dea.anomaly_level, 'danger', 'warning', 'info') ASC,
+                 dea.stat_date ASC;
+
     </select>
 
     <select id="selectLatestAll" resultType="com.securitycontrol.screen.domain.EnergySavingMeasure">