diff --git a/viewsh-module-ops/viewsh-module-ops-biz/src/main/java/com/viewsh/module/ops/service/area/AreaDeviceRelationServiceImpl.java b/viewsh-module-ops/viewsh-module-ops-biz/src/main/java/com/viewsh/module/ops/service/area/AreaDeviceRelationServiceImpl.java
index 7c12bbc..04a1238 100644
--- a/viewsh-module-ops/viewsh-module-ops-biz/src/main/java/com/viewsh/module/ops/service/area/AreaDeviceRelationServiceImpl.java
+++ b/viewsh-module-ops/viewsh-module-ops-biz/src/main/java/com/viewsh/module/ops/service/area/AreaDeviceRelationServiceImpl.java
@@ -34,14 +34,17 @@ import static com.viewsh.module.ops.enums.AreaTypeEnum.*;
 @Slf4j
 public class AreaDeviceRelationServiceImpl implements AreaDeviceRelationService {
 
-    @Resource
-    private OpsAreaDeviceRelationMapper opsAreaDeviceRelationMapper;
-
-    @Resource
-    private OpsBusAreaMapper opsBusAreaMapper;
-
-    @Resource
-    private IotDeviceQueryApi iotDeviceQueryApi;
+    @Resource
+    private OpsAreaDeviceRelationMapper opsAreaDeviceRelationMapper;
+
+    @Resource
+    private OpsBusAreaMapper opsBusAreaMapper;
+
+    @Resource
+    private IotDeviceQueryApi iotDeviceQueryApi;
+
+    @Resource
+    private AreaDeviceService areaDeviceService;
 
     private static final String TYPE_TRAFFIC_COUNTER = "TRAFFIC_COUNTER";
     private static final String TYPE_BEACON = "BEACON";
@@ -114,9 +117,13 @@ public class AreaDeviceRelationServiceImpl implements AreaDeviceRelationService
                 .enabled(true)
                 .build();
 
-        opsAreaDeviceRelationMapper.insert(relation);
-        return relation.getId();
-    }
+        opsAreaDeviceRelationMapper.insert(relation);
+        
+        // 清除可能存在的 NULL_CACHE 标记
+        areaDeviceService.evictConfigCache(relation.getAreaId(), relation.getRelationType());
+        
+        return relation.getId();
+    }
 
     @Override
     @Transactional(rollbackFor = Exception.class)
@@ -134,24 +141,32 @@ public class AreaDeviceRelationServiceImpl implements AreaDeviceRelationService
             relation.setConfigData(updateReq.getConfigData());
         }
 
-        // enabled 更新
-        if (updateReq.getEnabled() != null) {
-            relation.setEnabled(updateReq.getEnabled());
-        }
+        // enabled 更新
+        if (updateReq.getEnabled() != null) {
+            relation.setEnabled(updateReq.getEnabled());
+        }
+
+        opsAreaDeviceRelationMapper.updateById(relation);
+        
+        // 删缓存以同步 Redis
+        areaDeviceService.evictConfigCache(existing.getAreaId(), existing.getRelationType());
+    }
 
-        opsAreaDeviceRelationMapper.updateById(relation);
-    }
-
-    @Override
-    @Transactional(rollbackFor = Exception.class)
-    public Boolean unbindDevice(Long id) {
-        OpsAreaDeviceRelationDO existing = opsAreaDeviceRelationMapper.selectById(id);
-        if (existing == null) {
-            return false;
-        }
-
-        return opsAreaDeviceRelationMapper.deleteById(id) > 0;
-    }
+    @Override
+    @Transactional(rollbackFor = Exception.class)
+    public Boolean unbindDevice(Long id) {
+        OpsAreaDeviceRelationDO existing = opsAreaDeviceRelationMapper.selectById(id);
+        if (existing == null) {
+            return false;
+        }
+
+        boolean deleted = opsAreaDeviceRelationMapper.deleteById(id) > 0;
+        if (deleted) {
+            // 同步 Redis 缓存
+            areaDeviceService.evictConfigCache(existing.getAreaId(), existing.getRelationType());
+        }
+        return deleted;
+    }
 
     /**
      * 转换为响应 VO
diff --git a/viewsh-module-ops/viewsh-module-ops-biz/src/test/java/com/viewsh/module/ops/service/area/AreaDeviceRelationServiceTest.java b/viewsh-module-ops/viewsh-module-ops-biz/src/test/java/com/viewsh/module/ops/service/area/AreaDeviceRelationServiceTest.java
index f1ce657..a086ad4 100644
--- a/viewsh-module-ops/viewsh-module-ops-biz/src/test/java/com/viewsh/module/ops/service/area/AreaDeviceRelationServiceTest.java
+++ b/viewsh-module-ops/viewsh-module-ops-biz/src/test/java/com/viewsh/module/ops/service/area/AreaDeviceRelationServiceTest.java
@@ -43,11 +43,14 @@ class AreaDeviceRelationServiceTest {
     @Mock
     private OpsAreaDeviceRelationMapper opsAreaDeviceRelationMapper;
 
-    @Mock
-    private OpsBusAreaMapper opsBusAreaMapper;
-
-    @InjectMocks
-    private AreaDeviceRelationServiceImpl areaDeviceRelationService;
+    @Mock
+    private OpsBusAreaMapper opsBusAreaMapper;
+
+    @Mock
+    private AreaDeviceService areaDeviceService;
+
+    @InjectMocks
+    private AreaDeviceRelationServiceImpl areaDeviceRelationService;
 
     private OpsBusAreaDO testArea;
     private OpsAreaDeviceRelationDO testRelation;