diff --git a/health-watch/health-watch-api/src/main/java/com/renkang/watch/entity/WatchMonitorData.java b/health-watch/health-watch-api/src/main/java/com/renkang/watch/entity/WatchMonitorData.java
index 8b98c54..b7d21b5 100644
--- a/health-watch/health-watch-api/src/main/java/com/renkang/watch/entity/WatchMonitorData.java
+++ b/health-watch/health-watch-api/src/main/java/com/renkang/watch/entity/WatchMonitorData.java
@@ -151,6 +151,20 @@ public class WatchMonitorData implements Serializable {
     @Excel(name = "部门编码", width = 15)
     @Schema(title = "部门编码")
     private java.lang.String orgCode;
+    /**
+     * 事件ID（用于告警事件与GPS位置更新关联的唯一标识）
+     */
+    @Excel(name = "事件ID", width = 32)
+    @Schema(title = "事件ID")
+    private java.lang.String eventId;
+    /**
+     * 定位时间（手表上报的GPS定位时间，定时上报场景使用）
+     */
+    @Excel(name = "定位时间", width = 20, format = "yyyy-MM-dd HH:mm:ss")
+    @JsonFormat(timezone = "GMT+8", pattern = "yyyy-MM-dd HH:mm:ss")
+    @DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss")
+    @Schema(title = "定位时间")
+    private java.util.Date locateTime;
 
     @Schema(title = "员工编号")
     @TableField(exist = false)
diff --git a/health-watch/health-watch-api/src/main/java/com/renkang/watch/vo/WatchNotifyVo.java b/health-watch/health-watch-api/src/main/java/com/renkang/watch/vo/WatchNotifyVo.java
index af48e22..f441de1 100644
--- a/health-watch/health-watch-api/src/main/java/com/renkang/watch/vo/WatchNotifyVo.java
+++ b/health-watch/health-watch-api/src/main/java/com/renkang/watch/vo/WatchNotifyVo.java
@@ -45,4 +45,15 @@ public class WatchNotifyVo implements Serializable {
     private Date warnTime;
 
     private String gpsErrorMsg;
+
+    /**
+     * 事件ID（用于告警事件与GPS位置更新关联的唯一标识）
+     */
+    private String eventId;
+
+    /**
+     * 定位时间（手表上报的GPS定位时间，定时上报场景使用）
+     */
+    @JsonFormat(timezone = "GMT+8", pattern = "yyyy-MM-dd HH:mm:ss")
+    private Date locateTime;
 }
diff --git a/health-watch/health-watch-biz/src/main/java/com/renkang/watch/controller/WatchApiController.java b/health-watch/health-watch-biz/src/main/java/com/renkang/watch/controller/WatchApiController.java
index ab07ab2..53cd471 100644
--- a/health-watch/health-watch-biz/src/main/java/com/renkang/watch/controller/WatchApiController.java
+++ b/health-watch/health-watch-biz/src/main/java/com/renkang/watch/controller/WatchApiController.java
@@ -44,6 +44,21 @@ public class WatchApiController {
         return watchMonitorDataService.notice(json);
     }
 
+    /**
+     * 更新告警事件GPS位置信息接口
+     * 根据 watchNo + eventId 联合定位已有告警数据；
+     * 仅更新GPS相关字段，不推送大屏与短信；
+     * 内部会调用高德接口进行GPS84→GCJ02坐标转换与地址反查。
+     *
+     * @param json 入参（watchNo、eventId、lon、lat、address、locateTime、gpsErrorMsg）
+     * @return 处理结果
+     */
+    @PostMapping("/updateMonitorGps")
+    @Operation(summary = "更新告警事件GPS位置信息")
+    public AjaxJson updateMonitorGps(@RequestBody JSONObject json) {
+        return watchMonitorDataService.updateMonitorGps(json);
+    }
+
     @GetMapping("/setData")
     public AjaxJson setData() {
         AjaxJson ajaxJson = new AjaxJson();
diff --git a/health-watch/health-watch-biz/src/main/java/com/renkang/watch/service/IWatchMonitorDataService.java b/health-watch/health-watch-biz/src/main/java/com/renkang/watch/service/IWatchMonitorDataService.java
index 481af2e..044ff3d 100644
--- a/health-watch/health-watch-biz/src/main/java/com/renkang/watch/service/IWatchMonitorDataService.java
+++ b/health-watch/health-watch-biz/src/main/java/com/renkang/watch/service/IWatchMonitorDataService.java
@@ -38,6 +38,17 @@ public interface IWatchMonitorDataService extends IService<WatchMonitorData> {
      */
     AjaxJson notice(JSONObject jsonObject);
 
+    /**
+     * 更新告警事件GPS位置信息
+     * 根据 watchNo + eventId 联合定位已有告警数据；
+     * 缺失任一定位字段则忽略；已存在GPS信息则忽略；
+     * 仅更新数据，不推送大屏与短信。
+     *
+     * @param jsonObject 入参（含 watchNo、eventId、lon、lat、address、locateTime、gpsErrorMsg 等）
+     * @return 处理结果
+     */
+    AjaxJson updateMonitorGps(JSONObject jsonObject);
+
     /**
      * 处理历史数据 orgCode为空的问题
      * @return
diff --git a/health-watch/health-watch-biz/src/main/java/com/renkang/watch/service/impl/WatchMonitorDataServiceImpl.java b/health-watch/health-watch-biz/src/main/java/com/renkang/watch/service/impl/WatchMonitorDataServiceImpl.java
index e21ec63..a11662c 100644
--- a/health-watch/health-watch-biz/src/main/java/com/renkang/watch/service/impl/WatchMonitorDataServiceImpl.java
+++ b/health-watch/health-watch-biz/src/main/java/com/renkang/watch/service/impl/WatchMonitorDataServiceImpl.java
@@ -265,6 +265,102 @@ public class WatchMonitorDataServiceImpl extends ServiceImpl<WatchMonitorDataMap
         return ajaxJson;
     }
 
+    /**
+     * 更新告警事件GPS位置信息
+     * 根据 watchNo + eventId 联合定位已有告警数据；
+     * watchNo 或 eventId 任一缺失则忽略；
+     * 已存在 GPS 信息则忽略本次更新；
+     * 参考 createMonitorData 进行 GPS84 → GCJ02 坐标转换 + 高德地址反查；
+     * 仅更新数据，不推送大屏与短信。
+     *
+     * @param json 入参（含 watchNo、eventId、lon、lat、address、locateTime、gpsErrorMsg 等）
+     * @return 处理结果
+     */
+    @Override
+    public AjaxJson updateMonitorGps(JSONObject json) {
+        GlobalUtils.setHttpFeignToken();
+
+        AjaxJson ajaxJson = new AjaxJson();
+        logger.info("接收更新告警事件GPS信息=={}", json.toJSONString());
+
+        WatchNotifyVo data = json.toJavaObject(WatchNotifyVo.class);
+
+        // watchNo 或 eventId 任一缺失则忽略
+        if (StrUtil.isBlank(data.getWatchNo()) || StrUtil.isBlank(data.getEventId())) {
+            logger.warn("更新GPS信息缺失关键定位字段，忽略本次请求 watchNo={}, eventId={}", data.getWatchNo(), data.getEventId());
+            ajaxJson.setSuccess(true);
+            return ajaxJson;
+        }
+
+        // watchNo + eventId 联合定位已有告警数据
+        LambdaQueryWrapper<WatchMonitorData> queryWrapper = new LambdaQueryWrapper<>();
+        queryWrapper.eq(WatchMonitorData::getWatchNo, data.getWatchNo())
+                .eq(WatchMonitorData::getEventId, data.getEventId());
+        List<WatchMonitorData> existList = this.list(queryWrapper);
+        if (CollUtil.isEmpty(existList)) {
+            logger.warn("更新GPS信息失败，未匹配到告警记录 watchNo={}, eventId={}", data.getWatchNo(), data.getEventId());
+            ajaxJson.setSuccess(true);
+            return ajaxJson;
+        }
+
+        // 已存在GPS信息则忽略本次更新，避免覆盖已有有效坐标
+        boolean hasGps = existList.stream().anyMatch(m -> m.getLon() != null && m.getLat() != null);
+        if (hasGps) {
+            logger.info("告警记录已有GPS信息，忽略本次更新 watchNo={}, eventId={}", data.getWatchNo(), data.getEventId());
+            ajaxJson.setSuccess(true);
+            return ajaxJson;
+        }
+
+        // 计算高德坐标与高德地址（参考 createMonitorData 逻辑）
+        WatchMonitorData updateEntity = new WatchMonitorData();
+        updateEntity.setLon(data.getLon());
+        updateEntity.setLat(data.getLat());
+        updateEntity.setAddress(data.getAddress());
+        updateEntity.setGpsErrorMsg(data.getGpsErrorMsg());
+        updateEntity.setLocateTime(data.getLocateTime());
+
+        if (Stream.of(data.getLon(), data.getLat()).allMatch(value -> ObjUtil.isNotEmpty(value) && value != 0)) {
+            Gps gps = GPS84ToGCJ02(data.getLon(), data.getLat());
+            if (null != gps) {
+                // 写入高德坐标
+                updateEntity.setLonGd(BigDecimal.valueOf(gps.getLongitude()));
+                updateEntity.setLatGd(BigDecimal.valueOf(gps.getLatitude()));
+                // 调用高德接口获取地址信息
+                AmapResultVo amapResultVo = amapService.getFormattedAddress(gps.getLongitude(), gps.getLatitude(), 5000);
+                if (amapResultVo.isSuccess()) {
+                    updateEntity.setAddressGd(amapResultVo.getAddress());
+                    updateEntity.setAddress(amapResultVo.getAddress());
+                } else {
+                    String originError = StrUtil.isBlank(updateEntity.getGpsErrorMsg()) ? "" : updateEntity.getGpsErrorMsg() + "；";
+                    updateEntity.setGpsErrorMsg(originError + amapResultVo.getErrorMsg());
+                }
+            }
+        }
+
+        // 仅更新 GPS 相关字段，不推送大屏、不发短信
+        boolean updated = this.lambdaUpdate()
+                .eq(WatchMonitorData::getWatchNo, data.getWatchNo())
+                .eq(WatchMonitorData::getEventId, data.getEventId())
+                .set(WatchMonitorData::getLon, updateEntity.getLon())
+                .set(WatchMonitorData::getLat, updateEntity.getLat())
+                .set(WatchMonitorData::getAddress, updateEntity.getAddress())
+                .set(WatchMonitorData::getLonGd, updateEntity.getLonGd())
+                .set(WatchMonitorData::getLatGd, updateEntity.getLatGd())
+                .set(WatchMonitorData::getAddressGd, updateEntity.getAddressGd())
+                .set(WatchMonitorData::getGpsErrorMsg, updateEntity.getGpsErrorMsg())
+                .set(WatchMonitorData::getLocateTime, updateEntity.getLocateTime())
+                .update();
+
+        if (!updated) {
+            logger.warn("更新GPS信息失败 watchNo={}, eventId={}", data.getWatchNo(), data.getEventId());
+        } else {
+            logger.info("更新GPS信息成功 watchNo={}, eventId={}, 共更新{}条", data.getWatchNo(), data.getEventId(), existList.size());
+        }
+
+        ajaxJson.setSuccess(true);
+        return ajaxJson;
+    }
+
     /**
      * 构建异常数据
      *
@@ -272,6 +368,7 @@ public class WatchMonitorDataServiceImpl extends ServiceImpl<WatchMonitorDataMap
      * @return 异常数据
      */
     private WatchMonitorData createMonitorData(WatchNotifyVo data) {
+
         log.info("开始构建异常数据 => {}", JSONObject.toJSONString(data));
         WatchMonitorData monitorDataEntity = new WatchMonitorData();
         monitorDataEntity.setAddress(data.getAddress());