diff --git a/ems-system/src/main/java/com/xzzn/ems/domain/EmsBatteryStack.java b/ems-system/src/main/java/com/xzzn/ems/domain/EmsBatteryStack.java
index 117d9f1..3240398 100644
--- a/ems-system/src/main/java/com/xzzn/ems/domain/EmsBatteryStack.java
+++ b/ems-system/src/main/java/com/xzzn/ems/domain/EmsBatteryStack.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 org.apache.commons.lang3.builder.ToStringBuilder;
 import org.apache.commons.lang3.builder.ToStringStyle;
@@ -20,6 +22,11 @@ public class EmsBatteryStack 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;
@@ -254,6 +261,14 @@ public class EmsBatteryStack 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/BMSOverViewVo.java b/ems-system/src/main/java/com/xzzn/ems/domain/vo/BMSOverViewVo.java
index 3aac017..53f351f 100644
--- a/ems-system/src/main/java/com/xzzn/ems/domain/vo/BMSOverViewVo.java
+++ b/ems-system/src/main/java/com/xzzn/ems/domain/vo/BMSOverViewVo.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 BMSOverViewVo {
     /** 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;
 
@@ -67,6 +74,14 @@ public class BMSOverViewVo {
         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 c4ee196..0c8b166 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
@@ -178,7 +178,7 @@ public class DeviceDataProcessServiceImpl extends AbstractBatteryDataProcessor i
             redisCache.setCacheObject(RedisKeyConstants.SYNC_DATA + siteId + "_" + deviceId, obj, 1, TimeUnit.MINUTES);
 
             if (deviceId.contains(SiteDevice.BMSD.name())) {
-                batteryStackDataProcess(siteId, deviceId, jsonData);
+                batteryStackDataProcess(siteId, deviceId, jsonData, dataUpdateTime);
                 batteryGroupDataProcess(siteId, deviceId, jsonData);
                 batteryDataProcessFromBmsd(siteId, deviceId, jsonData, dataUpdateTime);
             } else if (deviceId.contains(SiteDevice.BMSC.name())) {
@@ -294,7 +294,7 @@ public class DeviceDataProcessServiceImpl extends AbstractBatteryDataProcessor i
 
     }
 
-    private void batteryStackDataProcess(String siteId, String deviceId, String dataJson) {
+    private void batteryStackDataProcess(String siteId, String deviceId, String dataJson, Date dataUpdateTime) {
 
         //电池堆
         Map<String, Object> obj = JSON.parseObject(dataJson, new TypeReference<Map<String, Object>>() {
@@ -314,6 +314,7 @@ public class DeviceDataProcessServiceImpl extends AbstractBatteryDataProcessor i
         EmsBatteryStack dataStack = new EmsBatteryStack();
 
         // 其他非 BigDecimal 字段
+        dataStack.setDataUpdateTime(dataUpdateTime);
         dataStack.setWorkStatus(WorkStatus.NORMAL.getCode()); // 或其他默认值
         dataStack.setPcsCommunicationStatus(CommunicationStatus.OK.getCode());
         dataStack.setEmsCommunicationStatus(CommunicationStatus.OK.getCode());
diff --git a/ems-system/src/main/resources/mapper/ems/EmsBatteryStackMapper.xml b/ems-system/src/main/resources/mapper/ems/EmsBatteryStackMapper.xml
index 2494b08..d6b8d72 100644
--- a/ems-system/src/main/resources/mapper/ems/EmsBatteryStackMapper.xml
+++ b/ems-system/src/main/resources/mapper/ems/EmsBatteryStackMapper.xml
@@ -6,6 +6,7 @@
 
     <resultMap type="EmsBatteryStack" id="EmsBatteryStackResult">
         <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"    />
@@ -75,6 +76,7 @@
     <select id="selectEmsBatteryStackList" parameterType="EmsBatteryStack" resultMap="EmsBatteryStackResult">
         <include refid="selectEmsBatteryStackVo"/>
         <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>
@@ -142,6 +144,7 @@
     <insert id="insertEmsBatteryStack" parameterType="EmsBatteryStack" useGeneratedKeys="true" keyProperty="id">
         insert into ems_battery_stack
         <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>
@@ -204,6 +207,7 @@
             <if test="circuitBreakerStatus != null">circuit_breaker_status,</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>
@@ -270,6 +274,7 @@
     <update id="updateEmsBatteryStack" parameterType="EmsBatteryStack">
         update ems_battery_stack
         <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>