diff --git a/main/manager-api/src/main/java/xiaozhi/modules/device/service/impl/DeviceServiceImpl.java b/main/manager-api/src/main/java/xiaozhi/modules/device/service/impl/DeviceServiceImpl.java
index f0603519..a79d1f2e 100644
--- a/main/manager-api/src/main/java/xiaozhi/modules/device/service/impl/DeviceServiceImpl.java
+++ b/main/manager-api/src/main/java/xiaozhi/modules/device/service/impl/DeviceServiceImpl.java
@@ -134,6 +134,10 @@ public class DeviceServiceImpl extends BaseServiceImpl<DeviceDao, DeviceEntity>
         // 清理redis缓存
         redisUtils.delete(cacheDeviceKey);
         redisUtils.delete(deviceKey);
+
+        // 添加：清除智能体设备数量缓存
+        redisUtils.delete(RedisKeys.getAgentDeviceCountById(agentId));
+
         return true;
     }
 
@@ -225,6 +229,16 @@ public class DeviceServiceImpl extends BaseServiceImpl<DeviceDao, DeviceEntity>
 
     @Override
     public void unbindDevice(Long userId, String deviceId) {
+        // 先查询设备信息，获取agentId
+        DeviceEntity device = baseDao.selectById(deviceId);
+        if (device == null) {
+            return;
+        }
+        if (StringUtils.isNotBlank(device.getAgentId())) {
+            // 清除智能体设备数量缓存
+            redisUtils.delete(RedisKeys.getAgentDeviceCountById(device.getAgentId()));
+        }
+
         UpdateWrapper<DeviceEntity> wrapper = new UpdateWrapper<>();
         wrapper.eq("user_id", userId);
         wrapper.eq("id", deviceId);
@@ -459,6 +473,9 @@ public class DeviceServiceImpl extends BaseServiceImpl<DeviceDao, DeviceEntity>
         entity.setUpdater(userId);
         entity.setAutoUpdate(1);
         baseDao.insert(entity);
+
+        // 添加：清除智能体设备数量缓存
+        redisUtils.delete(RedisKeys.getAgentDeviceCountById(dto.getAgentId()));
     }
 
     /**