diff --git a/.agents/skills/framework-usage/references/bot-api.md b/.agents/skills/framework-usage/references/bot-api.md
index da667875..0eaa358f 100644
--- a/.agents/skills/framework-usage/references/bot-api.md
+++ b/.agents/skills/framework-usage/references/bot-api.md
@@ -183,6 +183,13 @@ file = await self.api.qq.query.get_file(file_id)
 emoji = await self.api.qq.query.fetch_emoji_like(message_id, emoji_id, emoji_type="1", count=20, cookie="")  # -> EmojiLikeInfo
 likes = await self.api.qq.query.get_emoji_likes(message_id, emoji_id="", count=0)  # -> EmojiLikesResult
 
+# 语音转文字（NapCat 内置，原样返回 QQ 侧转写结果；QQ 侧未产出文本时抛 APIError）
+try:
+    ptt = await self.api.qq.query.fetch_ptt_text(message_id)  # -> PttTextResult
+    print(ptt.text)
+except APIError:  # 常见：retcode 1200 "获取语音转文字结果失败"
+    ...
+
 # 系统信息
 version = await self.api.qq.query.get_version_info()
 status = await self.api.qq.query.get_status()
@@ -427,6 +434,7 @@ await event.reject(reason="理由")
 | `"get_file"` | `query.get_file()` |
 | `"fetch_emoji_like"` | `query.fetch_emoji_like()` |
 | `"get_emoji_likes"` | `query.get_emoji_likes()` |
+| `"fetch_ptt_text"` | `query.fetch_ptt_text()` |
 | `"get_version_info"` | `query.get_version_info()` |
 | `"get_status"` | `query.get_status()` |
 | `"get_recent_contact"` | `query.get_recent_contact()` |
diff --git a/ncatbot/adapter/mock/api.py b/ncatbot/adapter/mock/api.py
index 7c1c7810..489496f2 100644
--- a/ncatbot/adapter/mock/api.py
+++ b/ncatbot/adapter/mock/api.py
@@ -30,6 +30,7 @@
     MessageData,
     MessageHistory,
     OcrResult,
+    PttTextResult,
     SendMessageResult,
     StrangerInfo,
     VersionInfo,
@@ -328,6 +329,9 @@ async def get_group_member_list(
     async def get_msg(self, message_id: Union[str, int]) -> MessageData:
         return self._record("get_msg", message_id=message_id)
 
+    async def fetch_ptt_text(self, message_id: Union[str, int]) -> PttTextResult:
+        return self._record("fetch_ptt_text", message_id=message_id)
+
     async def get_forward_msg(self, message_id: Union[str, int]) -> ForwardMessageData:
         return self._record("get_forward_msg", message_id=message_id)
 
diff --git a/ncatbot/adapter/napcat/api/query.py b/ncatbot/adapter/napcat/api/query.py
index 43a3f2f8..98db077c 100644
--- a/ncatbot/adapter/napcat/api/query.py
+++ b/ncatbot/adapter/napcat/api/query.py
@@ -22,6 +22,7 @@
     MessageData,
     MessageHistory,
     ForwardMessageData,
+    PttTextResult,
     RecentContact,
     StrangerInfo,
     VersionInfo,
@@ -236,6 +237,18 @@ async def get_emoji_likes(
         data = await self._call_data("get_emoji_likes", params) or {}
         return EmojiLikesResult(**data)
 
+    async def fetch_ptt_text(self, message_id: Union[str, int]) -> PttTextResult:
+        """获取语音消息的转文字结果
+
+        NapCat 的 ``fetch_ptt_text`` 接受数字或字符串消息 ID，
+        这里统一按字符串传递，避免超过 JS 安全整数范围的 ID 精度丢失。
+        """
+        data = (
+            await self._call_data("fetch_ptt_text", {"message_id": str(message_id)})
+            or {}
+        )
+        return PttTextResult(**data)
+
     # ---- 系统信息 ----
 
     async def get_version_info(self) -> VersionInfo:
diff --git a/ncatbot/api/qq/interface.py b/ncatbot/api/qq/interface.py
index 149d9936..144cd9af 100644
--- a/ncatbot/api/qq/interface.py
+++ b/ncatbot/api/qq/interface.py
@@ -37,6 +37,7 @@
     MessageHistory,
     ForwardMessageData,
     OcrResult,
+    PttTextResult,
     RecentContact,
     SendMessageResult,
     StrangerInfo,
@@ -404,6 +405,9 @@ async def download_file(
 
     # ---- 消息扩展操作 ----
 
+    @abstractmethod
+    async def fetch_ptt_text(self, message_id: Union[str, int]) -> PttTextResult: ...
+
     @abstractmethod
     async def set_msg_emoji_like(
         self, message_id: Union[str, int], emoji_id: str, set: bool = True
diff --git a/ncatbot/api/qq/query.py b/ncatbot/api/qq/query.py
index d2ddcd64..1d5adf7b 100644
--- a/ncatbot/api/qq/query.py
+++ b/ncatbot/api/qq/query.py
@@ -26,6 +26,7 @@
     LoginInfo,
     MessageData,
     OcrResult,
+    PttTextResult,
     RecentContact,
     StrangerInfo,
     VersionInfo,
@@ -165,6 +166,21 @@ async def get_recent_contact(self, count: int = 10) -> List[RecentContact]:
     async def ocr_image(self, image: str) -> OcrResult:
         return await self._api.ocr_image(image)
 
+    async def fetch_ptt_text(self, message_id: Union[str, int]) -> PttTextResult:
+        """获取语音消息的转文字结果
+
+        Parameters
+        ----------
+        message_id : str | int
+            语音消息的消息 ID
+
+        Returns
+        -------
+        PttTextResult
+            转写文本位于 ``text`` 字段
+        """
+        return await self._api.fetch_ptt_text(message_id)
+
     # ---- 头像查询 ----
 
     async def get_user_avatar(
diff --git a/ncatbot/types/napcat/__init__.py b/ncatbot/types/napcat/__init__.py
index 32a73eee..114638fa 100644
--- a/ncatbot/types/napcat/__init__.py
+++ b/ncatbot/types/napcat/__init__.py
@@ -50,6 +50,7 @@
     EmojiLikeUser,
     OcrResult,
     OcrText,
+    PttTextResult,
     RecentContact,
     RecentContactMessage,
     VersionInfo,
@@ -103,6 +104,7 @@
     "EmojiLikesUser",
     "OcrText",
     "OcrResult",
+    "PttTextResult",
     "RecentContact",
     "RecentContactMessage",
 ]
diff --git a/ncatbot/types/napcat/system.py b/ncatbot/types/napcat/system.py
index 20d7ad31..2d8ecffa 100644
--- a/ncatbot/types/napcat/system.py
+++ b/ncatbot/types/napcat/system.py
@@ -92,6 +92,15 @@ class OcrResult(NapCatModel):
     texts: Optional[List[OcrText]] = None
 
 
+class PttTextResult(NapCatModel):
+    """语音转文字结果
+
+    对应: ``fetch_ptt_text``
+    """
+
+    text: str = ""
+
+
 class RecentContactMessage(NapCatModel):
     """最近联系人中的最新消息（内嵌结构）"""
 
diff --git a/tests/README.md b/tests/README.md
index fbd99c4b..0edeec22 100644
--- a/tests/README.md
+++ b/tests/README.md
@@ -69,6 +69,7 @@ python tests/e2e/napcat/run.py
 | A | API Client | A-01 ~ A-02 |
 | AE | API Errors | AE-01 ~ AE-07 |
 | P | EventParser / NapCatEventParser | P-01 ~ P-07 |
+| NQ | NapCat 查询 API 参数转换 | NQ-01 ~ NQ-04 |
 | AR | AdapterRegistry | AR-01 ~ AR-05 |
 | CF | Config Migration | CF-01 ~ CF-05 |
 | CE | Config 分层与运行时覆盖 | CE-01 ~ CE-05 |
diff --git a/tests/unit/adapter/README.md b/tests/unit/adapter/README.md
index ce4d9650..c1ccfd1d 100644
--- a/tests/unit/adapter/README.md
+++ b/tests/unit/adapter/README.md
@@ -18,6 +18,17 @@
 | P-06 | message_sent 映射 | `message_sent` 映射到 `MESSAGE` + `message_type` |
 | P-07 | notify 子类型推导 | `notice_type=notify` 时使用 `sub_type` 推导 |
 
+### NapCat QueryAPI (`test_napcat_query_api.py`)
+
+测试 `QueryAPIMixin` 的消息 ID 参数转换与语音转文字结果解析。
+
+| 规范 ID | 说明 | 验证点 |
+|---------|------|--------|
+| NQ-01 | `get_forward_msg` 参数规范 | 使用 `message_id` 键传递 |
+| NQ-02 | 长消息 ID 精度 | 超过 JS 安全整数范围的 ID 以字符串原样传递 |
+| NQ-03 | `fetch_ptt_text` 参数与解析 | 以字符串 `message_id` 调用 `fetch_ptt_text`，解析 `text` |
+| NQ-04 | `fetch_ptt_text` 空数据 | `data` 为 null 时返回空文本 `text` |
+
 ## 运行方式
 
 ```bash
diff --git a/tests/unit/adapter/test_napcat_query_api.py b/tests/unit/adapter/test_napcat_query_api.py
index 063f8eff..6f8bc386 100644
--- a/tests/unit/adapter/test_napcat_query_api.py
+++ b/tests/unit/adapter/test_napcat_query_api.py
@@ -3,6 +3,8 @@
 规范:
   NQ-01: get_forward_msg 使用 NapCat 规范的 message_id 参数
   NQ-02: get_forward_msg 保留超过 JavaScript 安全整数范围的完整 ID
+  NQ-03: fetch_ptt_text 调用 NapCat 的 fetch_ptt_text 动作并解析 text
+  NQ-04: fetch_ptt_text 在 data 为 null 时返回空文本而不抛异常
 """
 
 from unittest.mock import AsyncMock
@@ -15,8 +17,8 @@
 class _FakeQueryMixin(QueryAPIMixin):
     """为测试提供底层 API 调用方法。"""
 
-    def __init__(self):
-        self._call_data = AsyncMock(return_value={"messages": []})
+    def __init__(self, data=None):
+        self._call_data = AsyncMock(return_value=data)
 
 
 class TestNapCatQueryAPI:
@@ -32,7 +34,7 @@ class TestNapCatQueryAPI:
     @pytest.mark.asyncio
     async def test_nq01_get_forward_msg_preserves_long_id(self, message_id):
         """NQ-01/02: 转发消息长 ID 始终通过字符串 message_id 原样传递。"""
-        api = _FakeQueryMixin()
+        api = _FakeQueryMixin(data={"messages": []})
 
         result = await api.get_forward_msg(message_id)
 
@@ -41,3 +43,32 @@ async def test_nq01_get_forward_msg_preserves_long_id(self, message_id):
             {"message_id": "7672696335120716277"},
         )
         assert result.messages == []
+
+    @pytest.mark.parametrize(
+        "message_id",
+        [
+            "7701320072321480080",
+            7701320072321480080,
+        ],
+    )
+    @pytest.mark.asyncio
+    async def test_nq03_fetch_ptt_text_passes_string_id(self, message_id):
+        """NQ-03: 语音转文字按字符串 message_id 调用 fetch_ptt_text 并解析 text。"""
+        api = _FakeQueryMixin(data={"text": "你好世界"})
+
+        result = await api.fetch_ptt_text(message_id)
+
+        api._call_data.assert_awaited_once_with(
+            "fetch_ptt_text",
+            {"message_id": "7701320072321480080"},
+        )
+        assert result.text == "你好世界"
+
+    @pytest.mark.asyncio
+    async def test_nq04_fetch_ptt_text_null_data(self):
+        """NQ-04: fetch_ptt_text 返回 data=null 时得到空文本而不是异常。"""
+        api = _FakeQueryMixin(data=None)
+
+        result = await api.fetch_ptt_text("7701320072321480080")
+
+        assert result.text == ""