diff --git a/README.md b/README.md
index 2ff0b72..268eec1 100644
--- a/README.md
+++ b/README.md
@@ -56,6 +56,18 @@ The popup dev panel is controlled by `enableDevAuthPanel`.
 6. Click `测试受保护接口`
 7. Confirm the popup shows JSON containing `"source": "mock-protected-api"` and `"message": "authorized"`
 
+## Batch Submit Mock Test
+
+1. Run `npm run mock:protected-api`
+2. Run `npm run build`
+3. Reload the unpacked extension from `dist/`
+4. Open `https://xingtu.cn/ad/creator/market`
+5. Choose an export range in the plugin toolbar
+6. Click `提交批次`
+7. Enter a batch name in the browser prompt
+8. Confirm the toolbar shows `批次提交成功`
+9. Confirm the mock batch response accepts the payload and reports the submitted `batchId`
+
 ## Market Auth Gate
 
 When the market page is opened without a valid auth state, the content script renders
diff --git a/scripts/mock-protected-api.mjs b/scripts/mock-protected-api.mjs
index 440bde9..174c35a 100644
--- a/scripts/mock-protected-api.mjs
+++ b/scripts/mock-protected-api.mjs
@@ -12,34 +12,49 @@ export function createMockProtectedApiServer({ port = 4319 } = {}) {
       return `http://127.0.0.1:${resolvedPort}`;
     },
     async start() {
-      server = http.createServer((request, response) => {
-        if (request.url !== "/api/mock/protected") {
-          response.writeHead(404, { "content-type": "application/json" });
-          response.end(JSON.stringify({ ok: false, error: "not-found" }));
+      server = http.createServer(async (request, response) => {
+        if (request.url === "/api/mock/protected") {
+          const authHeader = readBearerToken(request, response);
+          if (!authHeader) {
+            return;
+          }
+
+          response.writeHead(200, { "content-type": "application/json" });
+          response.end(
+            JSON.stringify({
+              ok: true,
+              source: "mock-protected-api",
+              message: "authorized",
+              receivedAuthHeader: authHeader
+            })
+          );
           return;
         }
 
-        const authHeader = request.headers.authorization ?? "";
-        const isBearer =
-          typeof authHeader === "string" &&
-          authHeader.startsWith("Bearer ") &&
-          authHeader.length > "Bearer ".length;
+        if (request.url === "/api/mock/batches" && request.method === "POST") {
+          const authHeader = readBearerToken(request, response);
+          if (!authHeader) {
+            return;
+          }
 
-        if (!isBearer) {
-          response.writeHead(401, { "content-type": "application/json" });
-          response.end(JSON.stringify({ ok: false, error: "unauthorized" }));
+          const payload = await readJsonBody(request);
+          const authors = Array.isArray(payload?.authors) ? payload.authors : [];
+          response.writeHead(200, { "content-type": "application/json" });
+          response.end(
+            JSON.stringify({
+              ok: true,
+              source: "mock-batch-submit",
+              acceptedCount: authors.length,
+              batchId:
+                typeof payload?.batchId === "string" ? payload.batchId : null,
+              receivedAuthHeader: authHeader
+            })
+          );
           return;
         }
 
-        response.writeHead(200, { "content-type": "application/json" });
-        response.end(
-          JSON.stringify({
-            ok: true,
-            source: "mock-protected-api",
-            message: "authorized",
-            receivedAuthHeader: authHeader
-          })
-        );
+        response.writeHead(404, { "content-type": "application/json" });
+        response.end(JSON.stringify({ ok: false, error: "not-found" }));
       });
 
       await new Promise((resolve) => {
@@ -65,6 +80,36 @@ export function createMockProtectedApiServer({ port = 4319 } = {}) {
   };
 }
 
+function readBearerToken(request, response) {
+  const authHeader = request.headers.authorization ?? "";
+  const isBearer =
+    typeof authHeader === "string" &&
+    authHeader.startsWith("Bearer ") &&
+    authHeader.length > "Bearer ".length;
+
+  if (!isBearer) {
+    response.writeHead(401, { "content-type": "application/json" });
+    response.end(JSON.stringify({ ok: false, error: "unauthorized" }));
+    return null;
+  }
+
+  return authHeader;
+}
+
+async function readJsonBody(request) {
+  const chunks = [];
+
+  for await (const chunk of request) {
+    chunks.push(Buffer.isBuffer(chunk) ? chunk : Buffer.from(chunk));
+  }
+
+  if (chunks.length === 0) {
+    return null;
+  }
+
+  return JSON.parse(Buffer.concat(chunks).toString("utf8"));
+}
+
 if (import.meta.url === `file://${process.argv[1]}`) {
   const server = createMockProtectedApiServer();
   await server.start();
diff --git a/tests/mock-protected-api.test.ts b/tests/mock-protected-api.test.ts
index 9c08639..8081dfa 100644
--- a/tests/mock-protected-api.test.ts
+++ b/tests/mock-protected-api.test.ts
@@ -44,4 +44,37 @@ describe("mock-protected-api", () => {
       error: "unauthorized"
     });
   });
+
+  test("accepts a batch payload when a Bearer token is present", async () => {
+    const server = createMockProtectedApiServer({ port: 0 });
+    await server.start();
+    servers.push(server);
+
+    const response = await fetch(`${server.baseUrl}/api/mock/batches`, {
+      body: JSON.stringify({
+        authors: [{ authorId: "111", authorName: "达人A" }],
+        batchId: "批次A-2026-04-22T12:30:00.000Z",
+        batchName: "批次A",
+        createdAt: "2026-04-22T12:30:00.000Z",
+        creatorName: "王少卿",
+        logtoUserId: "p7pdhhtde8kj",
+        resource: "https://talent-search.intelligrow.cn"
+      }),
+      headers: {
+        Authorization: "Bearer abc123",
+        "Content-Type": "application/json"
+      },
+      method: "POST"
+    });
+
+    expect(response.status).toBe(200);
+    await expect(response.json()).resolves.toEqual(
+      expect.objectContaining({
+        acceptedCount: 1,
+        batchId: "批次A-2026-04-22T12:30:00.000Z",
+        ok: true,
+        source: "mock-batch-submit"
+      })
+    );
+  });
 });