diff --git a/apps/web-antd/src/views/devicemanagement/deviceinfo/index.vue b/apps/web-antd/src/views/devicemanagement/deviceinfo/index.vue
index df7a1ac..81b4b76 100644
--- a/apps/web-antd/src/views/devicemanagement/deviceinfo/index.vue
+++ b/apps/web-antd/src/views/devicemanagement/deviceinfo/index.vue
@@ -736,6 +736,29 @@ const serviceCallOptions = ref<
 const selectedServiceIndex = ref<number | undefined>(undefined);
 const serviceCallFormValues = ref<Record<string, string>>({});
 
+/** 服务调用接口返回，展示在弹窗内；不自动关闭弹窗 */
+const serviceCallResultText = ref('');
+const serviceCallResultOk = ref(true);
+
+function formatServiceCallResultPayload(data: unknown): string {
+  if (data === undefined || data === null) {
+    return '（接口无返回体）';
+  }
+  if (typeof data === 'string') {
+    return data.trim() === '' ? '（空字符串）' : data;
+  }
+  try {
+    return JSON.stringify(data, null, 2);
+  } catch {
+    return String(data);
+  }
+}
+
+function clearServiceCallResult() {
+  serviceCallResultText.value = '';
+  serviceCallResultOk.value = true;
+}
+
 /** 需用日期时间选择「起始时标」的冻结/补抄类服务（与物模型服务标识 key 一致） */
 const FREEZE_START_TIME_MARKER_SERVICES = new Set([
   'DayFreezeService',
@@ -1183,12 +1206,14 @@ const [ServiceCallModal, serviceCallModalApi] = useVbenModal({
     serviceCallFormValues.value = {};
     valveCommandTypeOptions.value = [];
     valveCommandTypeLoading.value = false;
+    clearServiceCallResult();
     return true;
   },
   onOpenChange: async (isOpen: boolean) => {
     if (!isOpen) {
       return;
     }
+    clearServiceCallResult();
     const pid = serviceCallRow.value?.ioTPlatformProductId;
     if (!pid) {
       Message.warning('设备缺少平台产品信息，无法获取服务列表');
@@ -1256,15 +1281,21 @@ async function submitDeviceServiceCall() {
         serviceParams,
       },
     } as any);
-    if (typeof data === 'string' && data.trim() !== '') {
-      Message.success(data);
-    } else {
-      Message.success('服务调用成功');
-    }
-    serviceCallModalApi.close();
-  } catch (error) {
+    serviceCallResultOk.value = true;
+    serviceCallResultText.value = formatServiceCallResultPayload(data);
+    Message.success('服务调用成功');
+  } catch (error: any) {
     console.error('调用设备服务失败:', error);
-    Message.error('调用设备服务失败');
+    const backendMessage =
+      error?.response?.data?.error?.message ??
+      error?.data?.error?.message ??
+      error?.error?.message;
+    const msg =
+      backendMessage && typeof backendMessage === 'string'
+        ? backendMessage
+        : (error as Error)?.message || '调用设备服务失败';
+    serviceCallResultOk.value = false;
+    serviceCallResultText.value = msg;
   } finally {
     serviceCallModalApi.setState({ loading: false, confirmLoading: false });
   }
@@ -1275,6 +1306,7 @@ function openServiceCallModal(row: Record<string, any>) {
     Message.warning('设备缺少平台产品信息，无法获取服务列表');
     return;
   }
+  clearServiceCallResult();
   serviceCallRow.value = row;
   serviceCallModalApi.open();
 }
@@ -2904,7 +2936,7 @@ const toolbarActions = computed(() => [
     </CommandModal>
     <ServiceCallModal
       :title="`服务调用 - ${serviceCallRow.deviceName || serviceCallRow.deviceAddress || ''}`"
-      class="w-[440px] max-w-[92vw]"
+      class="w-[480px] max-w-[92vw]"
     >
       <div v-if="serviceCallLoading" class="py-10 text-center">
         <Loading :loading="true" tip="加载物模型服务中..." />
@@ -2988,6 +3020,19 @@ const toolbarActions = computed(() => [
         >
           当前服务无参数（thirdValue / secondValue 为空或无法解析）
         </div>
+        <div v-if="serviceCallResultText" class="mt-2 flex min-h-0 flex-shrink-0 flex-col gap-1">
+          <div class="text-sm font-medium text-gray-700">调用结果</div>
+          <div
+            class="max-h-[min(28vh,200px)] overflow-auto rounded border px-2 py-2 text-xs leading-relaxed"
+            :class="
+              serviceCallResultOk
+                ? 'border-green-200 bg-green-50 text-gray-800'
+                : 'border-red-200 bg-red-50 text-red-800'
+            "
+          >
+            <pre class="m-0 whitespace-pre-wrap break-words font-sans">{{ serviceCallResultText }}</pre>
+          </div>
+        </div>
       </div>
       <template #footer>
         <div class="flex w-full items-center justify-end gap-2">
diff --git a/apps/web-antd/src/views/thingmodelinfo/ioTPlatformThingModelInfo/index.vue b/apps/web-antd/src/views/thingmodelinfo/ioTPlatformThingModelInfo/index.vue
index dac552a..5a2f4e8 100644
--- a/apps/web-antd/src/views/thingmodelinfo/ioTPlatformThingModelInfo/index.vue
+++ b/apps/web-antd/src/views/thingmodelinfo/ioTPlatformThingModelInfo/index.vue
@@ -649,6 +649,36 @@ function normalizeFieldExtensionValue(fieldValue: unknown) {
   }
 }
 
+function normalizeObjectJsonFieldForSubmit(
+  fieldValue: unknown,
+): null | Record<string, unknown> {
+  if (fieldValue == null) {
+    return null;
+  }
+  if (typeof fieldValue === 'string') {
+    const trimmed = fieldValue.trim();
+    if (!trimmed) {
+      return null;
+    }
+    try {
+      const parsed = JSON.parse(trimmed);
+      if (parsed == null) {
+        return null;
+      }
+      if (typeof parsed === 'object' && !Array.isArray(parsed)) {
+        return parsed as Record<string, unknown>;
+      }
+      return null;
+    } catch {
+      return null;
+    }
+  }
+  if (typeof fieldValue === 'object' && !Array.isArray(fieldValue)) {
+    return fieldValue as Record<string, unknown>;
+  }
+  return null;
+}
+
 function formatFieldExtensionForForm(fieldValue: unknown) {
   if (fieldValue == null || fieldValue === '') {
     return '';
@@ -700,6 +730,7 @@ async function submit() {
     : postIoTplatformThingModelInfoCreateAsync;
   const { valid } = await formApi.validate();
   if (!valid) return;
+  const formValues = await formApi.getValues();
 
   // 获取产品ID：优先从搜索表单获取最新值，如果没有则使用响应式变量，编辑时也可以从编辑行数据获取
   let finalProductId: string | undefined;
@@ -711,7 +742,9 @@ async function submit() {
     const searchFormValues = gridApi?.formApi
       ? await gridApi.formApi.getValues()
       : {};
+    // 新增弹窗里会保存 _ioTPlatformProductId，作为重要兜底，避免搜索表单值丢失导致未传产品ID
     finalProductId =
+      formValues._ioTPlatformProductId ||
       searchFormValues.ioTPlatformProductId || productId.value || undefined;
     if (finalProductId) {
       finalProductId = String(finalProductId);
@@ -738,11 +771,13 @@ async function submit() {
       ? await gridApi.formApi.getValues()
       : {};
     const platformValue =
-      searchFormValues.ioTPlatform || ioTPlatform.value || '2';
+      formValues._ioTPlatform ||
+      searchFormValues.ioTPlatform ||
+      ioTPlatform.value ||
+      '2';
     finalPlatform = Number.parseInt(String(platformValue)) as 1 | 2;
   }
 
-  const formValues = await formApi.getValues();
   const ioTPlatformRawFieldExtensionParsed = parseJsonFieldValue(
     formValues.ioTPlatformRawFieldExtension,
     '平台物模型值类型扩展',
@@ -751,26 +786,28 @@ async function submit() {
     return;
   }
 
+  // 提交前移除仅供前端联动的临时字段，避免影响后端绑定
+  const { _ioTPlatform, _ioTPlatformProductId, ...cleanFormValues } = formValues;
+
   const fetchParams: any = {
-    ...formValues,
+    ...cleanFormValues,
     // 自动添加平台和产品信息
-    ioTPlatform: finalPlatform,
+    ioTPlatform: String(finalPlatform),
     ioTPlatformProductId: finalProductId,
-    // 转换标识符类型为数字类型（如果存在）
+    // 枚举按字符串值提交（如 "1" / "2"）
     ...(formValues.identifierType !== undefined &&
     formValues.identifierType !== null && {
-      identifierType: Number.parseInt(
-        String(formValues.identifierType),
-      ) as 1 | 2,
+      identifierType: String(formValues.identifierType),
     }),
     // 编辑时需要添加ID
     ...(isEdit && { id: editRow.value.id }),
-    // 标准物模型扩展参数支持在表单中以 JSON 文本编辑，提交时转回对象
-    standardFieldFieldExtension: normalizeFieldExtensionValue(
-      formValues.standardFieldFieldExtension,
+    // 两个扩展字段必须传可映射的 JSON；空值统一传 "{}"
+    standardFieldFieldExtension: normalizeObjectJsonFieldForSubmit(
+      normalizeFieldExtensionValue(formValues.standardFieldFieldExtension),
+    ),
+    ioTPlatformRawFieldExtension: normalizeObjectJsonFieldForSubmit(
+      ioTPlatformRawFieldExtensionParsed.value,
     ),
-    // 平台物模型值类型扩展必须按 JSON 格式传入后台
-    ioTPlatformRawFieldExtension: ioTPlatformRawFieldExtensionParsed.value,
   };
 
   try {