diff --git a/cocoscreator_projects/scripts/check-cocos-version.mjs b/cocoscreator_projects/scripts/check-cocos-version.mjs
new file mode 100644
index 0000000..4695a1e
--- /dev/null
+++ b/cocoscreator_projects/scripts/check-cocos-version.mjs
@@ -0,0 +1,31 @@
+#!/usr/bin/env node
+import { pathToFileURL } from 'node:url';
+import { HOST_PROJECT, GAMES_DIR, readCreatorVersion, listGameProjects } from './lib/paths.mjs';
+
+// 比对各子游戏工程与宿主工程的 creator.version
+export function checkVersions(hostProject, gamesDir) {
+  const expected = readCreatorVersion(hostProject);
+  const mismatches = [];
+  for (const proj of listGameProjects(gamesDir)) {
+    const version = readCreatorVersion(proj);
+    if (version !== expected) {
+      mismatches.push({ project: proj, version, expected });
+    }
+  }
+  return { expected, mismatches };
+}
+
+// CLI 入口：有不一致则退出码 1
+if (import.meta.url === pathToFileURL(process.argv[1]).href) {
+  const { expected, mismatches } = checkVersions(HOST_PROJECT, GAMES_DIR);
+  console.log(`宿主 Cocos 版本: ${expected}`);
+  if (mismatches.length === 0) {
+    console.log('OK: 所有子游戏工程版本一致。');
+    process.exit(0);
+  }
+  console.error('版本不一致:');
+  for (const m of mismatches) {
+    console.error(`  ${m.project}: ${m.version}（应为 ${m.expected}）`);
+  }
+  process.exit(1);
+}
diff --git a/cocoscreator_projects/scripts/test/check-cocos-version.test.mjs b/cocoscreator_projects/scripts/test/check-cocos-version.test.mjs
new file mode 100644
index 0000000..edd3076
--- /dev/null
+++ b/cocoscreator_projects/scripts/test/check-cocos-version.test.mjs
@@ -0,0 +1,32 @@
+import { test } from 'node:test';
+import assert from 'node:assert/strict';
+import { makeTempMonorepo, makeGameProject, cleanup } from './helpers.mjs';
+import { checkVersions } from '../check-cocos-version.mjs';
+
+test('checkVersions 全部一致时 mismatches 为空', () => {
+  const mono = makeTempMonorepo();
+  try {
+    makeGameProject(mono.games, 'a', '3.8.8');
+    makeGameProject(mono.games, 'b', '3.8.8');
+    const r = checkVersions(mono.host, mono.games);
+    assert.equal(r.expected, '3.8.8');
+    assert.deepEqual(r.mismatches, []);
+  } finally {
+    cleanup(mono.root);
+  }
+});
+
+test('checkVersions 报告与宿主不一致的工程', () => {
+  const mono = makeTempMonorepo();
+  try {
+    makeGameProject(mono.games, 'a', '3.8.8');
+    makeGameProject(mono.games, 'b', '3.8.6');
+    const r = checkVersions(mono.host, mono.games);
+    assert.equal(r.mismatches.length, 1);
+    assert.match(r.mismatches[0].project, /[\\/]b$/);
+    assert.equal(r.mismatches[0].version, '3.8.6');
+    assert.equal(r.mismatches[0].expected, '3.8.8');
+  } finally {
+    cleanup(mono.root);
+  }
+});