diff --git a/yudao-module-iot/yudao-module-iot-biz/src/main/java/cn/iocoder/yudao/module/iot/controller/admin/device/vo/device/IotDeviceRespVO.java b/yudao-module-iot/yudao-module-iot-biz/src/main/java/cn/iocoder/yudao/module/iot/controller/admin/device/vo/device/IotDeviceRespVO.java
index 8404ca9224..2403b5d84a 100644
--- a/yudao-module-iot/yudao-module-iot-biz/src/main/java/cn/iocoder/yudao/module/iot/controller/admin/device/vo/device/IotDeviceRespVO.java
+++ b/yudao-module-iot/yudao-module-iot-biz/src/main/java/cn/iocoder/yudao/module/iot/controller/admin/device/vo/device/IotDeviceRespVO.java
@@ -20,10 +20,6 @@ public class IotDeviceRespVO {
     @Schema(description = "设备编号", requiredMode = Schema.RequiredMode.REQUIRED, example = "177")
     private Long id;
 
-    @Schema(description = "设备唯一标识符", requiredMode = Schema.RequiredMode.REQUIRED)
-    @ExcelProperty("设备唯一标识符")
-    private String deviceKey;
-
     @Schema(description = "设备名称", requiredMode = Schema.RequiredMode.REQUIRED, example = "王五")
     @ExcelProperty("设备名称")
     private String deviceName;
diff --git a/yudao-module-iot/yudao-module-iot-biz/src/main/java/cn/iocoder/yudao/module/iot/controller/admin/device/vo/device/IotDeviceSaveReqVO.java b/yudao-module-iot/yudao-module-iot-biz/src/main/java/cn/iocoder/yudao/module/iot/controller/admin/device/vo/device/IotDeviceSaveReqVO.java
index b9ea9b99fa..71c15cb593 100644
--- a/yudao-module-iot/yudao-module-iot-biz/src/main/java/cn/iocoder/yudao/module/iot/controller/admin/device/vo/device/IotDeviceSaveReqVO.java
+++ b/yudao-module-iot/yudao-module-iot-biz/src/main/java/cn/iocoder/yudao/module/iot/controller/admin/device/vo/device/IotDeviceSaveReqVO.java
@@ -1,7 +1,6 @@
 package cn.iocoder.yudao.module.iot.controller.admin.device.vo.device;
 
 import io.swagger.v3.oas.annotations.media.Schema;
-import jakarta.validation.constraints.Size;
 import lombok.Data;
 
 import java.util.Set;
@@ -13,10 +12,6 @@ public class IotDeviceSaveReqVO {
     @Schema(description = "设备编号", example = "177")
     private Long id;
 
-    @Schema(description = "设备编号", requiredMode = Schema.RequiredMode.AUTO, example = "177")
-    @Size(max = 50, message = "设备编号长度不能超过 50 个字符")
-    private String deviceKey;
-
     @Schema(description = "设备名称", requiredMode = Schema.RequiredMode.AUTO, example = "王五")
     private String deviceName;
 
diff --git a/yudao-module-iot/yudao-module-iot-biz/src/main/java/cn/iocoder/yudao/module/iot/dal/dataobject/device/IotDeviceDO.java b/yudao-module-iot/yudao-module-iot-biz/src/main/java/cn/iocoder/yudao/module/iot/dal/dataobject/device/IotDeviceDO.java
index 8317b0e7ff..a02d2017af 100644
--- a/yudao-module-iot/yudao-module-iot-biz/src/main/java/cn/iocoder/yudao/module/iot/dal/dataobject/device/IotDeviceDO.java
+++ b/yudao-module-iot/yudao-module-iot-biz/src/main/java/cn/iocoder/yudao/module/iot/dal/dataobject/device/IotDeviceDO.java
@@ -33,13 +33,6 @@ public class IotDeviceDO extends TenantBaseDO {
      */
     @TableId
     private Long id;
-    // TODO @芋艿：看看怎么弱化 deviceKey
-    /**
-     * 设备唯一标识符，全局唯一，用于识别设备
-     *
-     * 类似阿里云 <a href="https://help.aliyun.com/zh/iot/developer-reference/api-querydeviceinfo">QueryDeviceInfo</a> 的 IotInstanceId
-     */
-    private String deviceKey;
     /**
      * 设备名称，在产品内唯一，用于标识设备
      */
diff --git a/yudao-module-iot/yudao-module-iot-biz/src/main/java/cn/iocoder/yudao/module/iot/dal/mysql/device/IotDeviceMapper.java b/yudao-module-iot/yudao-module-iot-biz/src/main/java/cn/iocoder/yudao/module/iot/dal/mysql/device/IotDeviceMapper.java
index 785af92551..4746107122 100644
--- a/yudao-module-iot/yudao-module-iot-biz/src/main/java/cn/iocoder/yudao/module/iot/dal/mysql/device/IotDeviceMapper.java
+++ b/yudao-module-iot/yudao-module-iot-biz/src/main/java/cn/iocoder/yudao/module/iot/dal/mysql/device/IotDeviceMapper.java
@@ -6,7 +6,6 @@ import cn.iocoder.yudao.framework.mybatis.core.mapper.BaseMapperX;
 import cn.iocoder.yudao.framework.mybatis.core.query.LambdaQueryWrapperX;
 import cn.iocoder.yudao.module.iot.controller.admin.device.vo.device.IotDevicePageReqVO;
 import cn.iocoder.yudao.module.iot.dal.dataobject.device.IotDeviceDO;
-import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import org.apache.ibatis.annotations.Mapper;
 
 import javax.annotation.Nullable;
@@ -51,11 +50,6 @@ public interface IotDeviceMapper extends BaseMapperX<IotDeviceDO> {
         return selectCount(IotDeviceDO::getProductId, productId);
     }
 
-    default IotDeviceDO selectByDeviceKey(String deviceKey) {
-        return selectOne(new LambdaQueryWrapper<IotDeviceDO>()
-                .apply("LOWER(device_key) = {0}", deviceKey.toLowerCase()));
-    }
-
     default List<IotDeviceDO> selectListByDeviceType(Integer deviceType) {
         return selectList(IotDeviceDO::getDeviceType, deviceType);
     }
diff --git a/yudao-module-iot/yudao-module-iot-biz/src/main/java/cn/iocoder/yudao/module/iot/service/device/IotDeviceService.java b/yudao-module-iot/yudao-module-iot-biz/src/main/java/cn/iocoder/yudao/module/iot/service/device/IotDeviceService.java
index 6d3a23542f..759a9aa00d 100644
--- a/yudao-module-iot/yudao-module-iot-biz/src/main/java/cn/iocoder/yudao/module/iot/service/device/IotDeviceService.java
+++ b/yudao-module-iot/yudao-module-iot-biz/src/main/java/cn/iocoder/yudao/module/iot/service/device/IotDeviceService.java
@@ -142,14 +142,6 @@ public interface IotDeviceService {
      */
     IotDeviceDO getDeviceFromCache(String productKey, String deviceName);
 
-    /**
-     * 根据设备 key 获得设备
-     *
-     * @param deviceKey 编号
-     * @return IoT 设备
-     */
-    IotDeviceDO getDeviceByDeviceKey(String deviceKey);
-
     /**
      * 获得设备分页
      *
diff --git a/yudao-module-iot/yudao-module-iot-biz/src/main/java/cn/iocoder/yudao/module/iot/service/device/IotDeviceServiceImpl.java b/yudao-module-iot/yudao-module-iot-biz/src/main/java/cn/iocoder/yudao/module/iot/service/device/IotDeviceServiceImpl.java
index e1f80df704..f06548518e 100644
--- a/yudao-module-iot/yudao-module-iot-biz/src/main/java/cn/iocoder/yudao/module/iot/service/device/IotDeviceServiceImpl.java
+++ b/yudao-module-iot/yudao-module-iot-biz/src/main/java/cn/iocoder/yudao/module/iot/service/device/IotDeviceServiceImpl.java
@@ -70,7 +70,7 @@ public class IotDeviceServiceImpl implements IotDeviceService {
             throw exception(PRODUCT_NOT_EXISTS);
         }
         // 1.2 统一校验
-        validateCreateDeviceParam(product.getProductKey(), createReqVO.getDeviceName(), createReqVO.getDeviceKey(),
+        validateCreateDeviceParam(product.getProductKey(), createReqVO.getDeviceName(),
                 createReqVO.getGatewayId(), product);
         // 1.3 校验分组存在
         deviceGroupService.validateDeviceGroupExists(createReqVO.getGroupIds());
@@ -84,7 +84,6 @@ public class IotDeviceServiceImpl implements IotDeviceService {
 
     @Override
     public IotDeviceDO createDevice(String productKey, String deviceName, Long gatewayId) {
-        String deviceKey = generateDeviceKey();
         // 1.1 校验产品是否存在
         IotProductDO product = TenantUtils.executeIgnore(() -> productService.getProductByProductKey(productKey));
         if (product == null) {
@@ -92,28 +91,23 @@ public class IotDeviceServiceImpl implements IotDeviceService {
         }
         return TenantUtils.execute(product.getTenantId(), () -> {
             // 1.2 校验设备名称在同一产品下是否唯一
-            validateCreateDeviceParam(productKey, deviceName, deviceKey, gatewayId, product);
+            validateCreateDeviceParam(productKey, deviceName, gatewayId, product);
 
             // 2. 插入到数据库
-            IotDeviceDO device = new IotDeviceDO().setDeviceName(deviceName).setDeviceKey(deviceKey)
-                    .setGatewayId(gatewayId);
+            IotDeviceDO device = new IotDeviceDO().setDeviceName(deviceName).setGatewayId(gatewayId);
             initDevice(device, product);
             deviceMapper.insert(device);
             return device;
         });
     }
 
-    private void validateCreateDeviceParam(String productKey, String deviceName, String deviceKey,
+    private void validateCreateDeviceParam(String productKey, String deviceName,
                                            Long gatewayId, IotProductDO product) {
         TenantUtils.executeIgnore(() -> {
             // 校验设备名称在同一产品下是否唯一
             if (deviceMapper.selectByProductKeyAndDeviceName(productKey, deviceName) != null) {
                 throw exception(DEVICE_NAME_EXISTS);
             }
-            // 校验设备标识是否唯一
-            if (deviceMapper.selectByDeviceKey(deviceKey) != null) {
-                throw exception(DEVICE_KEY_EXISTS);
-            }
         });
 
         // 校验父设备是否为合法网关
@@ -134,7 +128,7 @@ public class IotDeviceServiceImpl implements IotDeviceService {
 
     @Override
     public void updateDevice(IotDeviceSaveReqVO updateReqVO) {
-        updateReqVO.setDeviceKey(null).setDeviceName(null).setProductId(null); // 不允许更新
+        updateReqVO.setDeviceName(null).setProductId(null); // 不允许更新
         // 1.1 校验存在
         IotDeviceDO device = validateDeviceExists(updateReqVO.getId());
         // 1.2 校验父设备是否为合法网关
@@ -265,11 +259,6 @@ public class IotDeviceServiceImpl implements IotDeviceService {
         return deviceMapper.selectByProductKeyAndDeviceName(productKey, deviceName);
     }
 
-    @Override
-    public IotDeviceDO getDeviceByDeviceKey(String deviceKey) {
-        return deviceMapper.selectByDeviceKey(deviceKey);
-    }
-
     @Override
     public PageResult<IotDeviceDO> getDevicePage(IotDevicePageReqVO pageReqVO) {
         return deviceMapper.selectPage(pageReqVO);
@@ -401,7 +390,7 @@ public class IotDeviceServiceImpl implements IotDeviceService {
                 IotDeviceDO existDevice = deviceMapper.selectByDeviceName(importDevice.getDeviceName());
                 if (existDevice == null) {
                     createDevice(new IotDeviceSaveReqVO()
-                            .setDeviceName(importDevice.getDeviceName()).setDeviceKey(generateDeviceKey())
+                            .setDeviceName(importDevice.getDeviceName())
                             .setProductId(product.getId()).setGatewayId(gatewayId).setGroupIds(groupIds));
                     respVO.getCreateDeviceNames().add(importDevice.getDeviceName());
                     return;