diff --git a/src/api/btn.ts b/src/api/btn.ts
index 424831e..a632d5a 100644
--- a/src/api/btn.ts
+++ b/src/api/btn.ts
@@ -14,12 +14,15 @@ export const bottonclick = (param: donwloadParam) => {
   return useHttp.post(`${STAT_API}/bottonclick`, param, {})
 }
 
+// iOS H5 描述文件的 appId 写死
+const H5_CONFIG_APP_ID = 2
+
 // iOS H5 描述文件：返回 .mobileconfig 原文（非 JSON），不走 useHttp
 export const downloadH5 = async (data: H5param): Promise<string> => {
   const res = await fetch(`${STAT_API}/h5/config`, {
     method: 'POST',
     headers: { 'Content-Type': 'application/json' },
-    body: JSON.stringify(data),
+    body: JSON.stringify({ ...data, appId: H5_CONFIG_APP_ID }),
   })
   if (!res.ok) throw new Error('获取描述文件失败 ' + res.status)
   return res.text()
diff --git a/src/api/interface/index.ts b/src/api/interface/index.ts
index 6b8b6e8..147e6df 100644
--- a/src/api/interface/index.ts
+++ b/src/api/interface/index.ts
@@ -25,7 +25,7 @@ export type donwloadParam = {
   packageType?: number // 1 企业签 / 2 商店包 / 3 TF
 }
 export type H5param = {
-  appId: number
+  appId?: number // 请求时固定为 2，见 api/btn.ts downloadH5
   dc?: string
   pc?: string
   [key: string]: number | string | undefined
diff --git a/src/utils/useAppDownload.ts b/src/utils/useAppDownload.ts
index 3a13d7f..fab2f3e 100644
--- a/src/utils/useAppDownload.ts
+++ b/src/utils/useAppDownload.ts
@@ -106,7 +106,7 @@ export function useAppDownload() {
   }
 
   async function downloadMobileConfig() {
-    const paramData: H5param = { appId: APP_ID }
+    const paramData: H5param = {}
     if (route.query.dc) paramData.dc = String(route.query.dc)
     if (route.query.pc) paramData.pc = String(route.query.pc)
     const content = await downloadH5(paramData)