diff --git a/src/views/iot/device/components/DeviceAttributeForm.vue b/src/views/iot/device/components/DeviceAttributeForm.vue
index 9d472075..5b016ea5 100644
--- a/src/views/iot/device/components/DeviceAttributeForm.vue
+++ b/src/views/iot/device/components/DeviceAttributeForm.vue
@@ -4,7 +4,7 @@
       <el-form-item :label="t('DataCollection.Device.attributeCode')" prop="attributeCode">
         <el-input
 v-model="formData.attributeCode" :placeholder="t('DataCollection.Device.placeholderAttributeCode')"
-          @input="handleAttributeCodeInput" :disabled="formType === 'update'" />
+          :disabled="formType === 'update'" />
       </el-form-item>
       <el-form-item :label="t('DataCollection.Device.attributeName')" prop="attributeName">
         <el-input v-model="formData.attributeName" :placeholder="t('DataCollection.Device.placeholderAttributeName')" />
@@ -95,10 +95,6 @@ const formData = ref({
   deviceId: undefined as number | undefined
 })
 
-const handleAttributeCodeInput = (val: string) => {
-  const sanitized = (val || '').replace(/[^A-Za-z0-9_]/g, '')
-  formData.value.attributeCode = sanitized.replace(/^[0-9]+/, '')
-}