diff --git a/backend/services/build_service.py b/backend/services/build_service.py
index 8b51ff1..7397c2a 100644
--- a/backend/services/build_service.py
+++ b/backend/services/build_service.py
@@ -24,6 +24,7 @@ from ..config import (
 )
 from .log_streamer import log_streamer
 from .distribution import DistributionError, publish_ipa
+from .notification import NotificationError, send_dingtalk_notification
 from .project_patcher import ProjectPatchError, apply_project_config
 
 
@@ -444,6 +445,23 @@ async def run_build_task(task_id: str):
                 if task.oss_url:
                     await log_streamer.emit(task_id, f"下载链接: {task.oss_url}")
 
+                # App Store 仅提供 IPA 下载地址，不发送下载通知；Ad Hoc 才发送安装页二维码通知。
+                if task.build_type == "Ad_Hoc":
+                    # 通知不影响已完成的打包结果，发送失败仅写入日志以便排查。
+                    dingtalk_config = config_data.get("_upload_config", {}).get("dingtalk", {})
+                    try:
+                        notified = await asyncio.to_thread(
+                            send_dingtalk_notification,
+                            dingtalk_config,
+                            config_data,
+                            task.oss_url or oss_url,
+                            task.qr_code_path or qr_code_path,
+                        )
+                        if notified:
+                            await log_streamer.emit(task_id, "钉钉通知发送成功")
+                    except NotificationError as exc:
+                        await log_streamer.emit(task_id, f"钉钉通知未发送: {exc}", level="warn")
+
             # 带超时执行打包
             await asyncio.wait_for(_do_build(), timeout=timeout_seconds)
 
diff --git a/backend/services/distribution.py b/backend/services/distribution.py
index 4f25459..da13376 100644
--- a/backend/services/distribution.py
+++ b/backend/services/distribution.py
@@ -58,7 +58,7 @@ def _write_download_page(config: dict, html: Path, manifest_url: str):
     )
 
 
-def _remote_paths(config: dict) -> tuple[str, str, str]:
+def _remote_paths(config: dict) -> tuple[str, str, str, str]:
     stem = _artifact_stem(config)
     folder = config.get("OSS_FLODER", "ios-builds").strip("/") or "ios-builds"
     root = posixpath.join(folder, "iOS")
@@ -66,6 +66,7 @@ def _remote_paths(config: dict) -> tuple[str, str, str]:
         posixpath.join(root, f"{stem}.ipa"),
         posixpath.join(root, f"{stem}.plist"),
         posixpath.join(root, f"{stem}.html"),
+        posixpath.join(root, f"{stem}.png"),
     )
 
 
@@ -127,7 +128,7 @@ def _upload_oss(config: dict, files: list[tuple[Path, str]]) -> dict[str, str]:
 
 
 def publish_ipa(config: dict, ipa_path: Path, build_dir: Path) -> tuple[str, str]:
-    """发布 IPA，返回下载 URL 与二维码本地路径。"""
+    """发布 IPA，返回下载 URL 与二维码公开 URL。"""
     upload = config.get("_upload_config", {})
     mode = upload.get("mode", "")
     if mode not in {"oss", "webdav"}:
@@ -135,7 +136,7 @@ def publish_ipa(config: dict, ipa_path: Path, build_dir: Path) -> tuple[str, str
 
     output_dir = build_dir / "distribution"
     ipa_file, manifest, html = _write_distribution_files(config, ipa_path, output_dir)
-    ipa_remote, manifest_remote, html_remote = _remote_paths(config)
+    ipa_remote, manifest_remote, html_remote, qr_remote = _remote_paths(config)
 
     uploader = _upload_oss if mode == "oss" else _upload_webdav
 
@@ -157,4 +158,5 @@ def publish_ipa(config: dict, ipa_path: Path, build_dir: Path) -> tuple[str, str
     except ImportError as exc:
         raise DistributionError("未安装 qrcode，请重新执行 ./deploy.sh build") from exc
     qrcode.make(urls[".html"]).save(qr_path)
-    return urls[".html"], str(qr_path)
+    urls.update(uploader(upload, [(qr_path, qr_remote)]))
+    return urls[".html"], urls[".png"]
diff --git a/backend/services/notification.py b/backend/services/notification.py
new file mode 100644
index 0000000..b89e40d
--- /dev/null
+++ b/backend/services/notification.py
@@ -0,0 +1,80 @@
+"""打包完成后的钉钉通知。"""
+import base64
+import hashlib
+import hmac
+import time
+from urllib.parse import quote
+
+import httpx
+
+
+class NotificationError(Exception):
+    """通知发送失败。"""
+
+
+def _signed_webhook_url(webhook_url: str, secret: str) -> str:
+    """为启用了加签的钉钉机器人附加 timestamp 与 sign 参数。"""
+    if not secret:
+        return webhook_url
+
+    timestamp = str(round(time.time() * 1000))
+    signature = hmac.new(
+        secret.encode("utf-8"),
+        f"{timestamp}\n{secret}".encode("utf-8"),
+        hashlib.sha256,
+    ).digest()
+    separator = "&" if "?" in webhook_url else "?"
+    return f"{webhook_url}{separator}timestamp={timestamp}&sign={quote(base64.b64encode(signature))}"
+
+
+def build_dingtalk_payload(config_data: dict, download_url: str, qr_code_url: str = "") -> dict:
+    """生成与 AutoPacking/upload_iap.py 一致的钉钉 Markdown 内容。"""
+    details = (
+        f"**环境：** {config_data.get('SERVER', '')}\n\n"
+        f"**版本：** {config_data.get('VERSION', '')}\n\n"
+        f"**APP名称：** {config_data.get('APPID_NAME', '')}\n\n"
+        f"**包名：** {config_data.get('BUNDLE_ID', '')}\n\n"
+        f"**App Guid：** {config_data.get('APPID', '')}"
+    )
+    text = f"## 【iOS】打包信息\n\n{details}\n\n**iOS 下载链接:** {download_url}\n"
+    if qr_code_url:
+        text += f"\n![image]({qr_code_url})"
+
+    return {
+        "msgtype": "markdown",
+        "markdown": {"title": "iOS应用下载", "text": text},
+        "at": {"atMobiles": [], "isAtAll": False},
+    }
+
+
+def send_dingtalk_notification(
+    dingtalk_config: dict,
+    config_data: dict,
+    download_url: str,
+    qr_code_url: str = "",
+) -> bool:
+    """发送钉钉通知；未启用通知时不发起网络请求。"""
+    if not dingtalk_config.get("enabled"):
+        return False
+
+    webhook_url = dingtalk_config.get("webhook_url", "").strip()
+    if not webhook_url:
+        raise NotificationError("钉钉通知已启用，但未配置 Webhook URL")
+
+    payload = build_dingtalk_payload(config_data, download_url, qr_code_url)
+    payload["at"]["atMobiles"] = dingtalk_config.get("at_mobiles", [])
+    response = httpx.post(
+        _signed_webhook_url(webhook_url, dingtalk_config.get("secret", "")),
+        json=payload,
+        timeout=15,
+    )
+    if response.status_code // 100 != 2:
+        raise NotificationError(f"钉钉通知发送失败 ({response.status_code})")
+
+    try:
+        result = response.json()
+    except ValueError as exc:
+        raise NotificationError("钉钉通知返回内容无效") from exc
+    if result.get("errcode", 0) != 0:
+        raise NotificationError(f"钉钉通知发送失败: {result.get('errmsg', '未知错误')}")
+    return True
diff --git a/frontend/src/views/BuildView.vue b/frontend/src/views/BuildView.vue
index 1f2c6d1..36fa86f 100644
--- a/frontend/src/views/BuildView.vue
+++ b/frontend/src/views/BuildView.vue
@@ -126,7 +126,7 @@
             </div>
           </div>
           <div v-if="completedTask.build_type === 'Ad_Hoc' && completedTask.qr_code_path" class="qr-section">
-            <img :src="`/api/tasks/${completedTask.id}/qrcode`" alt="下载二维码" class="qr-image">
+            <img :src="completedTask.qr_code_path" alt="下载二维码" class="qr-image">
             <p class="qr-hint">扫码下载安装</p>
           </div>
         </div>
diff --git a/tests/test_distribution.py b/tests/test_distribution.py
index 8e2c4b1..5f3e1ee 100644
--- a/tests/test_distribution.py
+++ b/tests/test_distribution.py
@@ -50,3 +50,28 @@ def test_app_store_distribution_uploads_only_ipa(tmp_path):
     assert uploaded_files[0][0].suffix == ".ipa"
     assert download_url.endswith("100_2_0_0.ipa")
     assert qr_path == ""
+
+
+def test_adhoc_distribution_uploads_qrcode(tmp_path):
+    ipa = tmp_path / "source.ipa"
+    ipa.write_bytes(b"ad-hoc-ipa")
+    config = {
+        "APPID": "100",
+        "VERSION": "2.0.0",
+        "BUILD_TYPE": "Ad_Hoc",
+        "OSS_FLODER": "readoor",
+        "_upload_config": {"mode": "oss", "oss": {}},
+    }
+
+    def upload_files(_upload_config, files):
+        local_path, remote_path = files[0]
+        return {local_path.suffix: f"https://files.example.com/{remote_path}"}
+
+    with patch("backend.services.distribution._upload_oss", side_effect=upload_files) as upload:
+        download_url, qr_url = publish_ipa(config, ipa, tmp_path / "build")
+
+    assert download_url.endswith("100_2_0_0.html")
+    assert qr_url.endswith("100_2_0_0.png")
+    assert [call.args[1][0][0].suffix for call in upload.call_args_list] == [
+        ".ipa", ".plist", ".html", ".png",
+    ]
diff --git a/tests/test_notification.py b/tests/test_notification.py
new file mode 100644
index 0000000..d4c3b1b
--- /dev/null
+++ b/tests/test_notification.py
@@ -0,0 +1,60 @@
+"""钉钉通知测试。"""
+from unittest.mock import MagicMock, patch
+
+import pytest
+
+from backend.services.notification import NotificationError, build_dingtalk_payload, send_dingtalk_notification
+
+
+def _build_config():
+    return {
+        "SERVER": "测试环境",
+        "VERSION": "2.195.0",
+        "APPID_NAME": "阅门户测试App",
+        "BUNDLE_ID": "cn.touchv.a4YX061",
+        "APPID": "647372741900537856",
+    }
+
+
+def test_dingtalk_payload_matches_autopacking_content():
+    payload = build_dingtalk_payload(
+        _build_config(),
+        "https://download.example.com/app.html",
+        "https://download.example.com/app.png",
+    )
+
+    text = payload["markdown"]["text"]
+    assert payload["markdown"]["title"] == "iOS应用下载"
+    assert "## 【iOS】打包信息" in text
+    assert "**环境：** 测试环境" in text
+    assert "**版本：** 2.195.0" in text
+    assert "**APP名称：** 阅门户测试App" in text
+    assert "**包名：** cn.touchv.a4YX061" in text
+    assert "**App Guid：** 647372741900537856" in text
+    assert "**iOS 下载链接:** https://download.example.com/app.html" in text
+    assert "![image](https://download.example.com/app.png)" in text
+
+
+def test_dingtalk_notification_skips_when_disabled():
+    with patch("backend.services.notification.httpx.post") as post:
+        assert send_dingtalk_notification({}, _build_config(), "https://download.example.com/app") is False
+    post.assert_not_called()
+
+
+def test_dingtalk_notification_sends_markdown():
+    response = MagicMock(status_code=200)
+    response.json.return_value = {"errcode": 0}
+    with patch("backend.services.notification.httpx.post", return_value=response) as post:
+        assert send_dingtalk_notification(
+            {"enabled": True, "webhook_url": "https://example.com/robot"},
+            _build_config(),
+            "https://download.example.com/app.html",
+            "https://download.example.com/app.png",
+        ) is True
+
+    assert post.call_args.kwargs["json"]["markdown"]["title"] == "iOS应用下载"
+
+
+def test_dingtalk_notification_requires_webhook_when_enabled():
+    with pytest.raises(NotificationError, match="Webhook"):
+        send_dingtalk_notification({"enabled": True}, _build_config(), "https://download.example.com/app")