diff --git a/yudao-module-iot/yudao-module-iot-biz/src/main/java/cn/iocoder/yudao/module/iot/controller/admin/thinkmodelfunction/IotThinkModelFunctionController.http b/yudao-module-iot/yudao-module-iot-biz/src/main/java/cn/iocoder/yudao/module/iot/controller/admin/thinkmodelfunction/IotThinkModelFunctionController.http
index e31540710..34a4054f6 100644
--- a/yudao-module-iot/yudao-module-iot-biz/src/main/java/cn/iocoder/yudao/module/iot/controller/admin/thinkmodelfunction/IotThinkModelFunctionController.http
+++ b/yudao-module-iot/yudao-module-iot-biz/src/main/java/cn/iocoder/yudao/module/iot/controller/admin/thinkmodelfunction/IotThinkModelFunctionController.http
@@ -146,9 +146,9 @@ tenant-id: {{adminTenentId}}
 Authorization: Bearer {{token}}
 
 {
-  "id": 1,
-  "productId": 1001,
-  "productKey": "smart-sensor-001",
+  "id": 3,
+  "productId": 1002,
+  "productKey": "smart-sensor-002",
   "properties": [
     {
       "identifier": "Temperature",
@@ -158,8 +158,8 @@ Authorization: Bearer {{token}}
       "dataType": {
         "type": "float",
         "specs": {
-          "min": -40.0,
-          "max": 125.0,
+          "min": -100.0,
+          "max": 200.0,
           "step": 0.1,
           "unit": "℃"
         }
@@ -229,7 +229,8 @@ Authorization: Bearer {{token}}
       "name": "重启设备",
       "callType": "async",
       "inputData": [],
-      "description": "远程重启设备"
+      "description": "远程重启设备",
+      "method": "thing.service.reboot"
     },
     {
       "identifier": "SetThreshold",
@@ -251,7 +252,8 @@ Authorization: Bearer {{token}}
           "description": "报警温度阈值"
         }
       ],
-      "description": "设置设备的温度报警阈值"
+      "description": "设置设备的温度报警阈值",
+      "method": "thing.service.setThreshold"
     }
   ],
   "events": [
@@ -272,13 +274,14 @@ Authorization: Bearer {{token}}
           "description": "触发报警时的温度值"
         }
       ],
-      "description": "当温度超过阈值时触发高温报警事件"
+      "description": "当温度超过阈值时触发高温报警事件",
+      "method": "thing.event.highTemperatureAlert"
     }
   ]
 }
 
 
 ### 请求 /iot/think-model-function/get-by-product-key 接口 => 成功
-GET {{baseUrl}}/iot/think-model-function/get-by-product-key?productKey=123456
+GET {{baseUrl}}/iot/think-model-function/get-by-product-key?productKey=smart-sensor-002
 tenant-id: {{adminTenentId}}
 Authorization: Bearer {{token}}
\ No newline at end of file
diff --git a/yudao-module-iot/yudao-module-iot-biz/src/main/java/cn/iocoder/yudao/module/iot/convert/thinkmodelfunction/IotThinkModelFunctionConvert.java b/yudao-module-iot/yudao-module-iot-biz/src/main/java/cn/iocoder/yudao/module/iot/convert/thinkmodelfunction/IotThinkModelFunctionConvert.java
index 41e0c583b..aa7322eb3 100644
--- a/yudao-module-iot/yudao-module-iot-biz/src/main/java/cn/iocoder/yudao/module/iot/convert/thinkmodelfunction/IotThinkModelFunctionConvert.java
+++ b/yudao-module-iot/yudao-module-iot-biz/src/main/java/cn/iocoder/yudao/module/iot/convert/thinkmodelfunction/IotThinkModelFunctionConvert.java
@@ -1,12 +1,13 @@
 package cn.iocoder.yudao.module.iot.convert.thinkmodelfunction;
 
-import cn.hutool.json.JSONUtil;
 import cn.iocoder.yudao.module.iot.controller.admin.thinkmodelfunction.thingModel.ThingModelEvent;
 import cn.iocoder.yudao.module.iot.controller.admin.thinkmodelfunction.thingModel.ThingModelProperty;
 import cn.iocoder.yudao.module.iot.controller.admin.thinkmodelfunction.thingModel.ThingModelService;
 import cn.iocoder.yudao.module.iot.controller.admin.thinkmodelfunction.vo.IotThinkModelFunctionRespVO;
 import cn.iocoder.yudao.module.iot.controller.admin.thinkmodelfunction.vo.IotThinkModelFunctionSaveReqVO;
 import cn.iocoder.yudao.module.iot.dal.dataobject.thinkmodelfunction.IotThinkModelFunctionDO;
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
 import org.mapstruct.Mapper;
 import org.mapstruct.Mapping;
 import org.mapstruct.factory.Mappers;
@@ -19,6 +20,8 @@ public interface IotThinkModelFunctionConvert {
 
     IotThinkModelFunctionConvert INSTANCE = Mappers.getMapper(IotThinkModelFunctionConvert.class);
 
+    ObjectMapper objectMapper = new ObjectMapper();
+
     // 将 SaveReqVO 转换为 DO 对象，处理 properties, services, events 字段
     @Mapping(target = "properties", expression = "java(convertPropertiesToJson(bean.getProperties()))")
     @Mapping(target = "services", expression = "java(convertServicesToJson(bean.getServices()))")
@@ -26,15 +29,27 @@ public interface IotThinkModelFunctionConvert {
     IotThinkModelFunctionDO convert(IotThinkModelFunctionSaveReqVO bean);
 
     default String convertPropertiesToJson(List<ThingModelProperty> properties) {
-        return properties != null ? JSONUtil.toJsonStr(properties) : "[]";
+        try {
+            return properties != null ? objectMapper.writeValueAsString(properties) : "[]";
+        } catch (JsonProcessingException e) {
+            throw new RuntimeException("序列化 properties 时发生错误", e);
+        }
     }
 
     default String convertServicesToJson(List<ThingModelService> services) {
-        return services != null ? JSONUtil.toJsonStr(services) : "[]";
+        try {
+            return services != null ? objectMapper.writeValueAsString(services) : "[]";
+        } catch (JsonProcessingException e) {
+            throw new RuntimeException("序列化 services 时发生错误", e);
+        }
     }
 
     default String convertEventsToJson(List<ThingModelEvent> events) {
-        return events != null ? JSONUtil.toJsonStr(events) : "[]";
+        try {
+            return events != null ? objectMapper.writeValueAsString(events) : "[]";
+        } catch (JsonProcessingException e) {
+            throw new RuntimeException("序列化 events 时发生错误", e);
+        }
     }
 
     // 将 DO 转换为 RespVO 对象，处理 properties, services, events 字段
@@ -44,18 +59,29 @@ public interface IotThinkModelFunctionConvert {
     IotThinkModelFunctionRespVO convert(IotThinkModelFunctionDO bean);
 
     default List<ThingModelProperty> convertJsonToProperties(String propertiesJson) {
-        return propertiesJson != null ? JSONUtil.toList(propertiesJson, ThingModelProperty.class) : new ArrayList<>();
+        try {
+            return propertiesJson != null ? objectMapper.readValue(propertiesJson, objectMapper.getTypeFactory().constructCollectionType(List.class, ThingModelProperty.class)) : new ArrayList<>();
+        } catch (JsonProcessingException e) {
+            throw new RuntimeException("反序列化 properties 时发生错误", e);
+        }
     }
 
     default List<ThingModelService> convertJsonToServices(String servicesJson) {
-        return servicesJson != null ? JSONUtil.toList(servicesJson, ThingModelService.class) : new ArrayList<>();
+        try {
+            return servicesJson != null ? objectMapper.readValue(servicesJson, objectMapper.getTypeFactory().constructCollectionType(List.class, ThingModelService.class)) : new ArrayList<>();
+        } catch (JsonProcessingException e) {
+            throw new RuntimeException("反序列化 services 时发生错误", e);
+        }
     }
 
     default List<ThingModelEvent> convertJsonToEvents(String eventsJson) {
-        return eventsJson != null ? JSONUtil.toList(eventsJson, ThingModelEvent.class) : new ArrayList<>();
+        try {
+            return eventsJson != null ? objectMapper.readValue(eventsJson, objectMapper.getTypeFactory().constructCollectionType(List.class, ThingModelEvent.class)) : new ArrayList<>();
+        } catch (JsonProcessingException e) {
+            throw new RuntimeException("反序列化 events 时发生错误", e);
+        }
     }
 
     // 批量转换 DO 列表到 RespVO 列表
     List<IotThinkModelFunctionRespVO> convertList(List<IotThinkModelFunctionDO> list);
-}
-
+}
\ No newline at end of file
diff --git a/yudao-module-iot/yudao-module-iot-biz/src/main/java/cn/iocoder/yudao/module/iot/service/thinkmodelfunction/IotThinkModelFunctionServiceImpl.java b/yudao-module-iot/yudao-module-iot-biz/src/main/java/cn/iocoder/yudao/module/iot/service/thinkmodelfunction/IotThinkModelFunctionServiceImpl.java
index a2943a77b..559e0bed7 100644
--- a/yudao-module-iot/yudao-module-iot-biz/src/main/java/cn/iocoder/yudao/module/iot/service/thinkmodelfunction/IotThinkModelFunctionServiceImpl.java
+++ b/yudao-module-iot/yudao-module-iot-biz/src/main/java/cn/iocoder/yudao/module/iot/service/thinkmodelfunction/IotThinkModelFunctionServiceImpl.java
@@ -6,6 +6,8 @@ import cn.iocoder.yudao.module.iot.controller.admin.thinkmodelfunction.vo.IotThi
 import cn.iocoder.yudao.module.iot.convert.thinkmodelfunction.IotThinkModelFunctionConvert;
 import cn.iocoder.yudao.module.iot.dal.dataobject.thinkmodelfunction.IotThinkModelFunctionDO;
 import cn.iocoder.yudao.module.iot.dal.mysql.thinkmodelfunction.IotThinkModelFunctionMapper;
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
 import jakarta.annotation.Resource;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Service;
@@ -27,6 +29,8 @@ public class IotThinkModelFunctionServiceImpl implements IotThinkModelFunctionSe
     @Resource
     private IotThinkModelFunctionMapper thinkModelFunctionMapper;
 
+    private ObjectMapper objectMapper = new ObjectMapper();
+
     @Override
     public Long createThinkModelFunction(IotThinkModelFunctionSaveReqVO createReqVO) {
         log.info("创建物模型，参数：{}", createReqVO);
@@ -121,8 +125,12 @@ public class IotThinkModelFunctionServiceImpl implements IotThinkModelFunctionSe
         updateServiceInList(existingServices, propertyGetService);
 
         // 更新 thinkModelFunction 对象的 events 和 services 字段
-        thinkModelFunction.setEvents(JSONUtil.toJsonStr(existingEvents));
-        thinkModelFunction.setServices(JSONUtil.toJsonStr(existingServices));
+        try {
+            thinkModelFunction.setEvents(objectMapper.writeValueAsString(existingEvents));
+            thinkModelFunction.setServices(objectMapper.writeValueAsString(existingServices));
+        } catch (JsonProcessingException e) {
+            throw new RuntimeException("序列化事件和服务时发生错误", e);
+        }
     }
 
     /**