diff --git a/src/views/iot/thingmodel/ThingModelDataSpecs.vue b/src/views/iot/thingmodel/ThingModelDataSpecs.vue
index 5bced55c..c0b9771c 100644
--- a/src/views/iot/thingmodel/ThingModelDataSpecs.vue
+++ b/src/views/iot/thingmodel/ThingModelDataSpecs.vue
@@ -121,8 +121,9 @@ const getDataTypeOptions = computed(() => {
 const handleChange = (dataType: any) => {
   property.value.dataSpecsList = []
   property.value.dataSpecs = {}
-
-  property.value.dataSpecs.dataType = dataType
+  // 不是列表型数据才设置 dataSpecs.dataType
+  ![DataSpecsDataType.ENUM, DataSpecsDataType.BOOL, DataSpecsDataType.STRUCT].includes(dataType) &&
+    (property.value.dataSpecs.dataType = dataType)
   switch (dataType) {
     case DataSpecsDataType.ENUM:
       property.value.dataSpecsList.push({
diff --git a/src/views/iot/thingmodel/ThingModelForm.vue b/src/views/iot/thingmodel/ThingModelForm.vue
index 173dab34..f178cdf8 100644
--- a/src/views/iot/thingmodel/ThingModelForm.vue
+++ b/src/views/iot/thingmodel/ThingModelForm.vue
@@ -46,6 +46,7 @@ import { IOT_PROVIDE_KEY } from '@/views/iot/utils/constants'
 import { DataSpecsDataType, ThingModelFormRules } from './config'
 import { cloneDeep } from 'lodash-es'
 import { DICT_TYPE, getIntDictOptions } from '@/utils/dict'
+import { isEmpty } from '@/utils/is'
 
 /** IoT 物模型数据表单 */
 defineOptions({ name: 'IoTProductThingModelForm' })
@@ -103,6 +104,13 @@ const submitForm = async () => {
     data.dataType = data.property.dataType
     data.property.identifier = data.identifier
     data.property.name = data.name
+    // 处理 dataSpecs 为空的情况
+    if (isEmpty(data.property.dataSpecs)) {
+      delete data.property.dataSpecs
+    }
+    if (isEmpty(data.property.dataSpecsList)) {
+      delete data.property.dataSpecsList
+    }
     if (formType.value === 'create') {
       await ThingModelApi.createThingModel(data)
       message.success(t('common.createSuccess'))
diff --git a/src/views/iot/thingmodel/dataSpecs/ThingModelStructDataSpecs.vue b/src/views/iot/thingmodel/dataSpecs/ThingModelStructDataSpecs.vue
index 3ac7b296..354469f2 100644
--- a/src/views/iot/thingmodel/dataSpecs/ThingModelStructDataSpecs.vue
+++ b/src/views/iot/thingmodel/dataSpecs/ThingModelStructDataSpecs.vue
@@ -111,7 +111,7 @@ const submitForm = async () => {
         !!data.property.dataSpecs && Object.keys(data.property.dataSpecs).length > 1
           ? data.property.dataSpecs
           : undefined,
-      dataSpecsList: data.property.dataSpecsList
+      dataSpecsList: isEmpty(data.property.dataSpecsList) ? undefined : data.property.dataSpecsList
     }
 
     // 查找是否已有相同 identifier 的项