diff --git a/.gitignore b/.gitignore
index 73b5482..920b054 100644
--- a/.gitignore
+++ b/.gitignore
@@ -173,6 +173,9 @@ node_modules/
 # Next 开发缓存（静态导出目录 web-console/out 可纳入版本库以便无 Node 环境直接部署）
 web-console/.next/
 
+# scrcpy-server：由服务启动或 Docker 构建从 Genymobile Release 自动拉取（可纳入制品库而不提交）
+vendor/scrcpy-server.jar
+
 # Paramiko 部署本地日志（可能含敏感命令回显）
 .deploy_logs/
 
diff --git a/Dockerfile b/Dockerfile
index 860a6bd..7213a01 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -24,5 +24,8 @@ RUN pip install --no-cache-dir -r requirements.txt
 COPY . .
 COPY --from=console /src/web-console/out ./web-console/out
 
+# 构建期尝试拉取 scrcpy-server；失败不阻断构建（容器启动时 lifespan 会再试）
+RUN sh -c "python -m src.scrcpy_vendor || echo '[docker] scrcpy-server: build-time fetch skipped'"
+
 EXPOSE 8101
 CMD ["sh", "-c", "exec python -m uvicorn web:app --host 0.0.0.0 --port ${PORT}"]
diff --git a/src/scrcpy_stream.py b/src/scrcpy_stream.py
index 9e4269f..ba57882 100644
--- a/src/scrcpy_stream.py
+++ b/src/scrcpy_stream.py
@@ -17,6 +17,7 @@ from pathlib import Path
 from typing import Any
 
 from src.android_control import _adb_prefix, _adb_text, _run_cmd, adb_available
+from src.scrcpy_vendor import ensure_scrcpy_jar
 
 BASE_DIR = Path(__file__).resolve().parent.parent
 REMOTE_JAR = "/data/local/tmp/scrcpy-web-hub.jar"
@@ -65,10 +66,18 @@ def scrcpy_stream_info() -> dict[str, Any]:
         "server_path": str(jar) if jar else None,
         "server_version": ver,
         "remote_jar": REMOTE_JAR,
-        "hint_zh": "将官方 scrcpy 发行包中的 scrcpy-server（或 scrcpy-server.jar）放到项目 vendor/scrcpy-server.jar，"
-        "或设置环境变量 SCRCPY_SERVER_JAR；版本字符串须与该 jar 完全一致（默认可配 vendor/scrcpy-server.version 或 SCRCPY_SERVER_VERSION）。",
-        "hint_en": "Place scrcpy-server from the official scrcpy release in vendor/scrcpy-server.jar, "
-        "or set SCRCPY_SERVER_JAR; the version string must match the jar (vendor/scrcpy-server.version or SCRCPY_SERVER_VERSION).",
+        "hint_zh": (
+            "服务启动时会尝试从 Genymobile 官方 Release 拉取与 vendor/scrcpy-server.version 匹配的 scrcpy-server；"
+            "离线环境可预置 vendor/scrcpy-server.jar 或设置 SCRCPY_SERVER_JAR。"
+            if not jar
+            else "scrcpy-server 已就绪。"
+        ),
+        "hint_en": (
+            "On startup the hub tries to download the matching scrcpy-server from Genymobile releases; "
+            "for offline use place vendor/scrcpy-server.jar or set SCRCPY_SERVER_JAR."
+            if not jar
+            else "scrcpy-server is ready."
+        ),
     }
 
 
@@ -156,9 +165,12 @@ async def open_scrcpy_h264_stream(
         raise RuntimeError("adb is not installed")
 
     jar = resolve_scrcpy_server_jar()
+    if not jar:
+        ensure_scrcpy_jar(BASE_DIR)
+        jar = resolve_scrcpy_server_jar()
     if not jar:
         raise RuntimeError(
-            "scrcpy-server not found; set SCRCPY_SERVER_JAR or add vendor/scrcpy-server.jar",
+            "scrcpy-server 不可用：自动拉取失败或处于离线；请检查网络后重启服务，或预置 vendor/scrcpy-server.jar",
         )
 
     version = default_server_version()
diff --git a/src/scrcpy_vendor.py b/src/scrcpy_vendor.py
new file mode 100644
index 0000000..e90519d
--- /dev/null
+++ b/src/scrcpy_vendor.py
@@ -0,0 +1,85 @@
+"""自动准备官方 scrcpy-server（与 vendor/scrcpy-server.version 版本一致），供 Web 真流 adb push 使用。"""
+from __future__ import annotations
+
+import os
+import sys
+import urllib.error
+import urllib.request
+from pathlib import Path
+
+# 官方发行资产名：scrcpy-server-v{version}（无扩展名，实为 JAR）
+_GITHUB_DL = "https://github.com/Genymobile/scrcpy/releases/download/v{tag}/scrcpy-server-v{tag}"
+_MIN_BYTES = 8_000
+
+
+def _read_version(repo_root: Path) -> str:
+    env = (os.environ.get("SCRCPY_SERVER_VERSION") or "").strip().lstrip("v")
+    if env:
+        return env
+    vf = repo_root / "vendor" / "scrcpy-server.version"
+    if vf.is_file():
+        line = vf.read_text(encoding="utf-8").splitlines()[0].strip().lstrip("v")
+        if line:
+            return line
+    return "3.3.3"
+
+
+def ensure_scrcpy_jar(repo_root: Path) -> tuple[bool, str]:
+    """
+    若 vendor/scrcpy-server.jar 不存在或过小，则从 Genymobile GitHub Release 下载。
+    可通过环境变量 SKIP_SCRCPY_SERVER_FETCH=1 跳过。
+    """
+    if os.environ.get("SKIP_SCRCPY_SERVER_FETCH", "").strip().lower() in ("1", "true", "yes", "on"):
+        return True, "skip fetch (SKIP_SCRCPY_SERVER_FETCH)"
+
+    vendor_dir = repo_root / "vendor"
+    dest = vendor_dir / "scrcpy-server.jar"
+    env_jar = (os.environ.get("SCRCPY_SERVER_JAR") or "").strip()
+    if env_jar:
+        p = Path(env_jar).expanduser()
+        if p.is_file() and p.stat().st_size >= _MIN_BYTES:
+            return True, "using SCRCPY_SERVER_JAR"
+
+    if dest.is_file() and dest.stat().st_size >= _MIN_BYTES:
+        return True, "vendor/scrcpy-server.jar ok"
+
+    tag = _read_version(repo_root)
+    url = _GITHUB_DL.format(tag=tag)
+    vendor_dir.mkdir(parents=True, exist_ok=True)
+    tmp = dest.with_suffix(".jar.part")
+
+    try:
+        req = urllib.request.Request(
+            url,
+            headers={"User-Agent": "douyinyoutube-live-hub/scrcpy-bootstrap"},
+            method="GET",
+        )
+        with urllib.request.urlopen(req, timeout=120) as resp:
+            data = resp.read()
+    except (urllib.error.HTTPError, urllib.error.URLError, TimeoutError, OSError) as e:
+        return False, f"download failed ({url}): {e}"
+
+    if len(data) < _MIN_BYTES:
+        return False, f"download too small ({len(data)} bytes), check version {tag}"
+
+    if not data.startswith(b"PK"):
+        return False, "downloaded file does not look like a JAR (expected PK header)"
+
+    try:
+        tmp.write_bytes(data)
+        os.replace(tmp, dest)
+    except OSError as e:
+        return False, f"write vendor/scrcpy-server.jar failed: {e}"
+
+    return True, f"fetched scrcpy-server v{tag} -> vendor/scrcpy-server.jar"
+
+
+def main() -> int:
+    root = Path(__file__).resolve().parent.parent
+    ok, msg = ensure_scrcpy_jar(root)
+    print(msg, file=sys.stderr if not ok else sys.stdout)
+    return 0 if ok else 1
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())
diff --git a/web-console/components/live-product/LiveAndroidStreamConsole.tsx b/web-console/components/live-product/LiveAndroidStreamConsole.tsx
index cfcaf31..58a5e35 100644
--- a/web-console/components/live-product/LiveAndroidStreamConsole.tsx
+++ b/web-console/components/live-product/LiveAndroidStreamConsole.tsx
@@ -881,7 +881,10 @@ export function LiveAndroidStreamConsole({
               </div>
               {scrcpyInfo && !scrcpyInfo.server_jar ? (
                 <p className="mt-2 text-[10px] text-amber-200/80">
-                  {t("未检测到 scrcpy-server：请放置 vendor/scrcpy-server.jar 或设置 SCRCPY_SERVER_JAR。", "No scrcpy-server jar: add vendor/scrcpy-server.jar or SCRCPY_SERVER_JAR.")}
+                  {t(
+                    "未检测到 scrcpy-server：服务启动时会自动从官方 Release 拉取；若仍失败请检查宿主机出网或重启 web 进程。",
+                    "scrcpy-server missing: it is fetched on hub startup from official releases; check outbound HTTPS or restart web.",
+                  )}
                   {scrcpyInfo.server_version ? ` (${t("期望版本", "version")} ${scrcpyInfo.server_version})` : null}
                 </p>
               ) : null}
diff --git a/web.py b/web.py
index 7fb683b..93226f6 100644
--- a/web.py
+++ b/web.py
@@ -30,6 +30,7 @@ from src.android_control import (
     list_android_devices,
 )
 from src.scrcpy_stream import cleanup_scrcpy_session, open_scrcpy_h264_stream, scrcpy_stream_info
+from src.scrcpy_vendor import ensure_scrcpy_jar
 from src.control_plane import (
     delete_root_file,
     list_root_files,
@@ -341,6 +342,12 @@ async def lifespan(app: FastAPI):
     except Exception:
         # PM2/Shell 异常时不阻塞整站启动（否则反代持续 502）
         pass
+    try:
+        ok, msg = await asyncio.to_thread(ensure_scrcpy_jar, BASE_DIR)
+        if not ok:
+            print(f"[web] scrcpy-server: {msg}", file=sys.stderr)
+    except Exception as exc:
+        print(f"[web] scrcpy-server bootstrap: {exc}", file=sys.stderr)
     yield