diff --git a/src/views/iot/device/components/DeviceAttributeForm.vue b/src/views/iot/device/components/DeviceAttributeForm.vue
index b2761d3e..b0229d4b 100644
--- a/src/views/iot/device/components/DeviceAttributeForm.vue
+++ b/src/views/iot/device/components/DeviceAttributeForm.vue
@@ -95,33 +95,6 @@ const formData = ref({
   deviceId: undefined as number | undefined
 })
 
-const ratioEnabledTypes = new Set([
-  'uint8',
-  'uint16',
-  'uint32',
-  'uint64',
-  'int8',
-  'int16',
-  'int32',
-  'float32',
-  'float64'
-])
-
-const ratioEnabled = computed(() => {
-  const v = formData.value.dataType
-  if (!v) return false
-  return ratioEnabledTypes.has(v)
-})
-
-watch(
-  () => formData.value.dataType,
-  () => {
-    if (!ratioEnabled.value) {
-      formData.value.ratio = undefined
-    }
-  }
-)
-
 const handleAttributeCodeInput = (val: string) => {
   const sanitized = (val || '').replace(/[^A-Za-z0-9_]/g, '')
   formData.value.attributeCode = sanitized.replace(/^[0-9]+/, '')