diff --git a/stub-app-projects/mp-harmony/entry/src/main/module.json5 b/stub-app-projects/mp-harmony/entry/src/main/module.json5
index 9d9c47d..c134355 100644
--- a/stub-app-projects/mp-harmony/entry/src/main/module.json5
+++ b/stub-app-projects/mp-harmony/entry/src/main/module.json5
@@ -67,7 +67,9 @@
       },
       {
         // PR-FRONTEND-VOICE-INPUT (2026-09-24): 元服务录音需要麦克风权限
+        // user_grant 权限必须同时声明 reason 和 usedScene
         "name": "ohos.permission.MICROPHONE",
+        "reason": "$string:permission_microphone_reason",
         "usedScene": {
           "abilities": [
             "EntryAbility"
diff --git a/stub-app-projects/mp-harmony/entry/src/main/resources/base/element/string.json b/stub-app-projects/mp-harmony/entry/src/main/resources/base/element/string.json
index 9e41945..dec36a0 100644
--- a/stub-app-projects/mp-harmony/entry/src/main/resources/base/element/string.json
+++ b/stub-app-projects/mp-harmony/entry/src/main/resources/base/element/string.json
@@ -4,6 +4,10 @@
       "name": "module_desc",
       "value": "module description"
     },
+    {
+      "name": "permission_microphone_reason",
+      "value": "用于语音搜索与语音输入功能，录制语音以识别用户需求"
+    },
     {
       "name": "EntryAbility_desc",
       "value": "EntryAbility description"