diff --git a/ems-system/src/main/java/com/xzzn/ems/domain/EmsBatteryCluster.java b/ems-system/src/main/java/com/xzzn/ems/domain/EmsBatteryCluster.java
index e1a00c3..2bc12c1 100644
--- a/ems-system/src/main/java/com/xzzn/ems/domain/EmsBatteryCluster.java
+++ b/ems-system/src/main/java/com/xzzn/ems/domain/EmsBatteryCluster.java
@@ -1,7 +1,9 @@
 package com.xzzn.ems.domain;
 
 import java.math.BigDecimal;
+import java.util.Date;
 
+import com.fasterxml.jackson.annotation.JsonFormat;
 import com.xzzn.common.core.domain.BaseEntity;
 import com.xzzn.common.utils.StringUtils;
 import org.apache.commons.lang3.builder.ToStringBuilder;
@@ -21,6 +23,11 @@ public class EmsBatteryCluster extends BaseEntity
     /**  */
     private Long id;
 
+    /** 数据更新时间 */
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
+    @Excel(name = "数据更新时间", width = 30, dateFormat = "yyyy-MM-dd HH:mm:ss")
+    private Date dataUpdateTime;
+
     /** 工作状态：0-正常 1-异常 2-停止 */
     @Excel(name = "工作状态：0-正常 1-异常 2-停止")
     private String workStatus;
@@ -223,6 +230,14 @@ public class EmsBatteryCluster extends BaseEntity
         return id;
     }
 
+    public Date getDataUpdateTime() {
+        return dataUpdateTime;
+    }
+
+    public void setDataUpdateTime(Date dataUpdateTime) {
+        this.dataUpdateTime = dataUpdateTime;
+    }
+
     public void setWorkStatus(String workStatus)
     {
         this.workStatus = workStatus;
diff --git a/ems-system/src/main/java/com/xzzn/ems/domain/vo/BMSBatteryClusterVo.java b/ems-system/src/main/java/com/xzzn/ems/domain/vo/BMSBatteryClusterVo.java
index dfae301..020ade0 100644
--- a/ems-system/src/main/java/com/xzzn/ems/domain/vo/BMSBatteryClusterVo.java
+++ b/ems-system/src/main/java/com/xzzn/ems/domain/vo/BMSBatteryClusterVo.java
@@ -1,6 +1,9 @@
 package com.xzzn.ems.domain.vo;
 
+import com.fasterxml.jackson.annotation.JsonFormat;
+
 import java.math.BigDecimal;
+import java.util.Date;
 import java.util.List;
 
 /**
@@ -12,6 +15,10 @@ public class BMSBatteryClusterVo {
     /** 设备名称 */
     private String deviceName;
 
+    /** 数据更新时间 */
+    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
+    private Date dataUpdateTime;
+
     /** 工作状态 */
     private String workStatus;
 
@@ -70,6 +77,14 @@ public class BMSBatteryClusterVo {
         this.deviceName = deviceName;
     }
 
+    public Date getDataUpdateTime() {
+        return dataUpdateTime;
+    }
+
+    public void setDataUpdateTime(Date dataUpdateTime) {
+        this.dataUpdateTime = dataUpdateTime;
+    }
+
     public String getWorkStatus() {
         return workStatus;
     }
diff --git a/ems-system/src/main/java/com/xzzn/ems/service/impl/DeviceDataProcessServiceImpl.java b/ems-system/src/main/java/com/xzzn/ems/service/impl/DeviceDataProcessServiceImpl.java
index 7ca6ba2..c4ee196 100644
--- a/ems-system/src/main/java/com/xzzn/ems/service/impl/DeviceDataProcessServiceImpl.java
+++ b/ems-system/src/main/java/com/xzzn/ems/service/impl/DeviceDataProcessServiceImpl.java
@@ -182,12 +182,12 @@ public class DeviceDataProcessServiceImpl extends AbstractBatteryDataProcessor i
                 batteryGroupDataProcess(siteId, deviceId, jsonData);
                 batteryDataProcessFromBmsd(siteId, deviceId, jsonData, dataUpdateTime);
             } else if (deviceId.contains(SiteDevice.BMSC.name())) {
-                batteryClusterDataProcess(siteId, deviceId, jsonData);
+                batteryClusterDataProcess(siteId, deviceId, jsonData, dataUpdateTime);
                 batteryDataProcessFromBmsc(siteId, deviceId, jsonData, dataUpdateTime);
             } else if (deviceId.contains(SiteDevice.PCS.name())) {
                 pcsDataProcess(siteId, deviceId, jsonData, dataUpdateTime);
                 pcsBranchDataProcess(siteId, deviceId, jsonData);
-                batteryClusterDataProcess(siteId, jsonData);
+                batteryClusterDataProcess(siteId, jsonData, dataUpdateTime);
             } else if (deviceId.contains(SiteDevice.LOAD.name())) {
                 loadDataProcess(siteId, deviceId, jsonData, dataUpdateTime);
             } else if (deviceId.contains(SiteDevice.METEGF.name())
@@ -560,7 +560,7 @@ public class DeviceDataProcessServiceImpl extends AbstractBatteryDataProcessor i
         }
     }
 
-    private void batteryClusterDataProcess(String siteId, String deviceId, String dataJson) {
+    private void batteryClusterDataProcess(String siteId, String deviceId, String dataJson, Date dataUpdateTime) {
 
         Map<String, Object> obj = JSON.parseObject(dataJson, new TypeReference<Map<String, Object>>() {
         });
@@ -576,6 +576,7 @@ public class DeviceDataProcessServiceImpl extends AbstractBatteryDataProcessor i
 
         saveDeviceData(pointMatchList, obj, data);
 
+        data.setDataUpdateTime(dataUpdateTime);
         data.setWorkStatus(WorkStatus.NORMAL.getCode()); // 或其他默认值
         data.setPcsCommunicationStatus(CommunicationStatus.OK.getCode());
         data.setEmsCommunicationStatus(CommunicationStatus.OK.getCode());
@@ -812,7 +813,7 @@ public class DeviceDataProcessServiceImpl extends AbstractBatteryDataProcessor i
 
     }
 
-    private void batteryClusterDataProcess(String siteId, String dataJson) {
+    private void batteryClusterDataProcess(String siteId, String dataJson, Date dataUpdateTime) {
         if (!SiteEnum.DDS.getCode().equals(siteId)) {
             return;
         }
@@ -831,6 +832,7 @@ public class DeviceDataProcessServiceImpl extends AbstractBatteryDataProcessor i
             //BMSC 电池簇
             EmsBatteryCluster data = new EmsBatteryCluster();
             // 其他非 BigDecimal 字段
+            data.setDataUpdateTime(dataUpdateTime);
             data.setWorkStatus(WorkStatus.NORMAL.getCode()); // 或其他默认值
             data.setPcsCommunicationStatus(CommunicationStatus.OK.getCode());
             data.setEmsCommunicationStatus(CommunicationStatus.OK.getCode());
diff --git a/ems-system/src/main/resources/mapper/ems/EmsBatteryClusterMapper.xml b/ems-system/src/main/resources/mapper/ems/EmsBatteryClusterMapper.xml
index 6268281..e64219f 100644
--- a/ems-system/src/main/resources/mapper/ems/EmsBatteryClusterMapper.xml
+++ b/ems-system/src/main/resources/mapper/ems/EmsBatteryClusterMapper.xml
@@ -6,6 +6,7 @@
 
     <resultMap type="EmsBatteryCluster" id="EmsBatteryClusterResult">
         <result property="id"    column="id"    />
+        <result property="dataUpdateTime"    column="data_update_time"    />
         <result property="workStatus"    column="work_status"    />
         <result property="pcsCommunicationStatus"    column="pcs_communication_status"    />
         <result property="emsCommunicationStatus"    column="ems_communication_status"    />
@@ -68,6 +69,7 @@
     <select id="selectEmsBatteryClusterList" parameterType="EmsBatteryCluster" resultMap="EmsBatteryClusterResult">
         <include refid="selectEmsBatteryClusterVo"/>
         <where>
+            <if test="dataUpdateTime != null "> and data_update_time = #{dataUpdateTime}</if>
             <if test="workStatus != null  and workStatus != ''"> and work_status = #{workStatus}</if>
             <if test="pcsCommunicationStatus != null  and pcsCommunicationStatus != ''"> and pcs_communication_status = #{pcsCommunicationStatus}</if>
             <if test="emsCommunicationStatus != null  and emsCommunicationStatus != ''"> and ems_communication_status = #{emsCommunicationStatus}</if>
@@ -127,6 +129,7 @@
     <insert id="insertEmsBatteryCluster" parameterType="EmsBatteryCluster" useGeneratedKeys="true" keyProperty="id">
         insert into ems_battery_cluster
         <trim prefix="(" suffix=")" suffixOverrides=",">
+            <if test="dataUpdateTime != null">data_update_time,</if>
             <if test="workStatus != null">work_status,</if>
             <if test="pcsCommunicationStatus != null">pcs_communication_status,</if>
             <if test="emsCommunicationStatus != null">ems_communication_status,</if>
@@ -182,6 +185,7 @@
             <if test="totalDischargeEnergy != null">total_discharge_energy,</if>
         </trim>
         <trim prefix="values (" suffix=")" suffixOverrides=",">
+            <if test="dataUpdateTime != null">#{dataUpdateTime},</if>
             <if test="workStatus != null">#{workStatus},</if>
             <if test="pcsCommunicationStatus != null">#{pcsCommunicationStatus},</if>
             <if test="emsCommunicationStatus != null">#{emsCommunicationStatus},</if>
@@ -241,6 +245,7 @@
     <update id="updateEmsBatteryCluster" parameterType="EmsBatteryCluster">
         update ems_battery_cluster
         <trim prefix="SET" suffixOverrides=",">
+            <if test="dataUpdateTime != null">data_update_time = #{dataUpdateTime},</if>
             <if test="workStatus != null">work_status = #{workStatus},</if>
             <if test="pcsCommunicationStatus != null">pcs_communication_status = #{pcsCommunicationStatus},</if>
             <if test="emsCommunicationStatus != null">ems_communication_status = #{emsCommunicationStatus},</if>