diff --git a/.husky/pre-push b/.husky/pre-push
new file mode 100644
index 0000000..970dc77
--- /dev/null
+++ b/.husky/pre-push
@@ -0,0 +1,26 @@
+#!/usr/bin/env sh
+
+set -e
+
+zero_object_id=0000000000000000000000000000000000000000
+
+while IFS=' ' read -r local_ref local_object_id remote_ref remote_object_id
+do
+    if [ "$remote_ref" != "refs/heads/main" ]; then
+        continue
+    fi
+
+    if [ "$local_object_id" = "$zero_object_id" ]; then
+        echo "拒绝推送：禁止删除远端 main。" >&2
+        exit 1
+    fi
+
+    if [ "$remote_object_id" = "$zero_object_id" ]; then
+        continue
+    fi
+
+    if ! git merge-base --is-ancestor "$remote_object_id" "$local_object_id"; then
+        echo "拒绝推送：远端 main 只允许快进更新，禁止强制推送。" >&2
+        exit 1
+    fi
+done
diff --git a/package.json b/package.json
index 092f953..94cc359 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
         "dev:harness": "pnpm --filter @trade-message-center/mind-test-harness run dev",
         "build": "pnpm run clean:dist && pnpm run version:ensure && node scripts/with-build-hash.mjs --filter @trade-message-center/onetalk-contract --filter @trade-message-center/server --filter @trade-message-center/chrome-extension --if-present run build",
         "typecheck": "pnpm run clean:dist && pnpm run version:ensure && pnpm --filter @trade-message-center/onetalk-contract --filter @trade-message-center/server --filter @trade-message-center/chrome-extension --if-present run typecheck",
-        "test": "pnpm run clean:dist && pnpm run version:ensure && node --test scripts/package-version.test.mjs scripts/release.test.mjs scripts/dev-startup.test.mjs && pnpm --filter @trade-message-center/onetalk-contract --filter @trade-message-center/server --filter @trade-message-center/chrome-extension --if-present run test",
+        "test": "pnpm run clean:dist && pnpm run version:ensure && node --test scripts/package-version.test.mjs scripts/release.test.mjs scripts/dev-startup.test.mjs scripts/pre-push-main-protection.test.mjs && pnpm --filter @trade-message-center/onetalk-contract --filter @trade-message-center/server --filter @trade-message-center/chrome-extension --if-present run test",
         "format": "oxfmt",
         "format:check": "pnpm run version:ensure && oxfmt --check",
         "version:sync": "node scripts/sync-package-versions.mjs",
diff --git a/scripts/pre-push-main-protection.test.mjs b/scripts/pre-push-main-protection.test.mjs
new file mode 100644
index 0000000..40cb300
--- /dev/null
+++ b/scripts/pre-push-main-protection.test.mjs
@@ -0,0 +1,96 @@
+// 验证 pre-push 对远端 main 的非快进更新进行保护。
+
+import assert from "node:assert/strict";
+import { mkdtempSync, rmSync, writeFileSync } from "node:fs";
+import { tmpdir } from "node:os";
+import { join } from "node:path";
+import { fileURLToPath } from "node:url";
+import { spawnSync } from "node:child_process";
+import test from "node:test";
+
+const repositoryRoot = fileURLToPath(new URL("../", import.meta.url));
+const hookPath = join(repositoryRoot, ".husky", "pre-push");
+const zeroObjectId = "0".repeat(40);
+
+const runGit = (cwd, arguments_) => {
+    const result = spawnSync("git", arguments_, {
+        cwd,
+        encoding: "utf8",
+    });
+    assert.equal(result.status, 0, result.stderr);
+    return result.stdout.trim();
+};
+
+const createRepository = () => {
+    const repository = mkdtempSync(join(tmpdir(), "tmc-pre-push-"));
+    runGit(repository, ["init", "--quiet"]);
+    runGit(repository, ["config", "user.email", "test@example.com"]);
+    runGit(repository, ["config", "user.name", "Pre-push test"]);
+
+    const commit = (fileName, content, message) => {
+        writeFileSync(join(repository, fileName), content);
+        runGit(repository, ["add", fileName]);
+        runGit(repository, ["commit", "--quiet", "-m", message]);
+        return runGit(repository, ["rev-parse", "HEAD"]);
+    };
+
+    const base = commit("base.txt", "base\n", "base");
+    const main = commit("main.txt", "main\n", "main");
+    runGit(repository, ["switch", "--detach", base]);
+    const divergent = commit("divergent.txt", "divergent\n", "divergent");
+
+    return { base, divergent, main, repository };
+};
+
+const runHook = (repository, localObjectId, remoteRef, remoteObjectId) =>
+    spawnSync("sh", [hookPath], {
+        cwd: repository,
+        encoding: "utf8",
+        input: `refs/heads/local ${localObjectId} ${remoteRef} ${remoteObjectId}\n`,
+    });
+
+test("allows a fast-forward update to remote main", () => {
+    const { base, main, repository } = createRepository();
+    try {
+        const result = runHook(repository, main, "refs/heads/main", base);
+
+        assert.equal(result.status, 0, result.stderr);
+    } finally {
+        rmSync(repository, { force: true, recursive: true });
+    }
+});
+
+test("rejects a non-fast-forward update to remote main", () => {
+    const { divergent, main, repository } = createRepository();
+    try {
+        const result = runHook(repository, divergent, "refs/heads/main", main);
+
+        assert.notEqual(result.status, 0);
+        assert.match(result.stderr, /只允许快进更新/u);
+    } finally {
+        rmSync(repository, { force: true, recursive: true });
+    }
+});
+
+test("does not restrict non-fast-forward updates to other remote branches", () => {
+    const { divergent, main, repository } = createRepository();
+    try {
+        const result = runHook(repository, divergent, "refs/heads/release", main);
+
+        assert.equal(result.status, 0, result.stderr);
+    } finally {
+        rmSync(repository, { force: true, recursive: true });
+    }
+});
+
+test("rejects deleting remote main", () => {
+    const { main, repository } = createRepository();
+    try {
+        const result = runHook(repository, zeroObjectId, "refs/heads/main", main);
+
+        assert.notEqual(result.status, 0);
+        assert.match(result.stderr, /禁止删除远端 main/u);
+    } finally {
+        rmSync(repository, { force: true, recursive: true });
+    }
+});