diff --git a/viewsh-module-ops/viewsh-module-ops-biz/src/main/java/com/viewsh/module/ops/service/area/OpsBusAreaService.java b/viewsh-module-ops/viewsh-module-ops-biz/src/main/java/com/viewsh/module/ops/service/area/OpsBusAreaService.java
index 2e39462..543521f 100644
--- a/viewsh-module-ops/viewsh-module-ops-biz/src/main/java/com/viewsh/module/ops/service/area/OpsBusAreaService.java
+++ b/viewsh-module-ops/viewsh-module-ops-biz/src/main/java/com/viewsh/module/ops/service/area/OpsBusAreaService.java
@@ -54,4 +54,14 @@ public interface OpsBusAreaService {
      */
     Boolean deleteArea(Long id);
 
+    /**
+     * 根据设备ID获取关联的区域ID
+     * <p>
+     * 用于客流统计等场景，通过设备查询其所属区域
+     *
+     * @param deviceId 设备ID
+     * @return 区域ID，如果未找到返回 null
+     */
+    Long getAreaIdByDeviceId(Long deviceId);
+
 }
diff --git a/viewsh-module-ops/viewsh-module-ops-biz/src/main/java/com/viewsh/module/ops/service/area/OpsBusAreaServiceImpl.java b/viewsh-module-ops/viewsh-module-ops-biz/src/main/java/com/viewsh/module/ops/service/area/OpsBusAreaServiceImpl.java
index 43ec57f..9fd3ff5 100644
--- a/viewsh-module-ops/viewsh-module-ops-biz/src/main/java/com/viewsh/module/ops/service/area/OpsBusAreaServiceImpl.java
+++ b/viewsh-module-ops/viewsh-module-ops-biz/src/main/java/com/viewsh/module/ops/service/area/OpsBusAreaServiceImpl.java
@@ -192,4 +192,10 @@ public class OpsBusAreaServiceImpl implements OpsBusAreaService {
                 || target.getParentPath().endsWith("/" + sourceId);
     }
 
+    @Override
+    public Long getAreaIdByDeviceId(Long deviceId) {
+        var relation = opsAreaDeviceRelationMapper.selectByDeviceId(deviceId);
+        return relation != null ? relation.getAreaId() : null;
+    }
+
 }