diff --git a/scripts/package.mjs b/scripts/package.mjs
index 6a48e7b..438166d 100644
--- a/scripts/package.mjs
+++ b/scripts/package.mjs
@@ -49,7 +49,13 @@ async function verifyLaunch(executable, label) {
   const child = spawn(executable, [`--user-data-dir=${userData}`], {
     cwd: path.dirname(executable),
     stdio: "ignore",
-    windowsHide: false
+    windowsHide: false,
+    env: {
+      ...process.env,
+      RPA_SKIP_SINGLE_INSTANCE: "1",
+      RPA_E2E: "1",
+      RPA_FIXTURE_PORT: String(18000 + Math.floor(Math.random() * 1000))
+    }
   });
   await delay(8000);
   const exited = child.exitCode !== null || child.signalCode !== null;
diff --git a/scripts/spawn-test.mjs b/scripts/spawn-test.mjs
new file mode 100644
index 0000000..190556d
--- /dev/null
+++ b/scripts/spawn-test.mjs
@@ -0,0 +1,40 @@
+import { spawn } from "node:child_process";
+
+const executable = process.argv[2];
+if (!executable) {
+  console.error("usage: node scripts/spawn-test.mjs <exe> [...args]");
+  process.exit(2);
+}
+const env = { ...process.env };
+delete env.ELECTRON_RUN_AS_NODE;
+
+const child = spawn(executable, process.argv.slice(3), {
+  env,
+  stdio: ["ignore", "pipe", "pipe"],
+  windowsHide: false
+});
+
+child.stdout.on("data", (data) => process.stdout.write(`[out] ${data}`));
+child.stderr.on("data", (data) => process.stderr.write(`[err] ${data}`));
+
+const timer = setTimeout(() => {
+  console.log(`STILL_RUNNING pid=${child.pid}`);
+  try {
+    child.kill("SIGKILL");
+  } catch {
+    // ignore
+  }
+  setTimeout(() => process.exit(0), 1000);
+}, 9000);
+
+child.on("exit", (code, signal) => {
+  clearTimeout(timer);
+  console.log(`EXIT code=${code} signal=${signal}`);
+  process.exit(0);
+});
+
+child.on("error", (error) => {
+  clearTimeout(timer);
+  console.error(`SPAWN_ERROR ${error.message}`);
+  process.exit(1);
+});
diff --git a/src/main/index.ts b/src/main/index.ts
index bfa11e6..77fda1c 100644
--- a/src/main/index.ts
+++ b/src/main/index.ts
@@ -172,7 +172,8 @@ function registerIpc(): void {
   });
 }
 
-const gotLock = app.requestSingleInstanceLock();
+// 打包冒烟/自动化测试需要与用户日常实例隔离；正常启动仍然保持单实例。
+const gotLock = process.env.RPA_SKIP_SINGLE_INSTANCE === "1" ? true : app.requestSingleInstanceLock();
 if (!gotLock) {
   app.quit();
 } else {