diff --git a/packages/koot/libs/safeguard.js b/packages/koot/libs/safeguard.js
deleted file mode 100644
index 6f1374787..000000000
--- a/packages/koot/libs/safeguard.js
+++ /dev/null
@@ -1,71 +0,0 @@
-/* eslint-disable no-console */
-
-/**
- * @module
- * Safeguard mechanism for koot commands
- */
-
-const resolve = require('resolve');
-const log = require('./log');
-const __ = require('../utils/translate');
-const getCwd = require('../utils/get-cwd');
-const getAppType = require('../utils/get-app-type');
-const getAppTypeString = require('../utils/get-app-type-string');
-const envUpdateAppType = require('./env/update-app-type');
-
-/**
- * Safeguard mechanism for koot commands. If error occurs, throw Error
- * @async
- * @void
- */
-const safeguard = async (kootConfig = {}) => {
-    // ========================================================================
-    //
-    // Ensure App Type related env
-    //
-    // ========================================================================
-    const appType = await getAppType();
-    if (!appType) envUpdateAppType(getAppTypeString(kootConfig.type));
-    if (!(await getAppType())) {
-        console.log(' ');
-        log('error', __('safeguard.INVALID_CONFIG', { key: 'type' }));
-        console.log(' ');
-        console.log(' ');
-        throw new Error('INVALID_CONFIG:type');
-    }
-
-    // ========================================================================
-    //
-    // Node.js
-    //
-    // ========================================================================
-    // TODO 判断 node 版本
-
-    // ========================================================================
-    //
-    // Electron
-    //
-    // ========================================================================
-    const isElectronApp =
-        kootConfig.target === 'electron' ||
-        process.env.KOOT_BUILD_TARGET === 'electron';
-    if (isElectronApp) {
-        await new Promise((r, reject) => {
-            resolve('koot-electron', { basedir: getCwd() }, (err, res) => {
-                if (err) reject(err);
-                else r(res);
-            });
-        }).catch((err) => {
-            if (err.code === 'MODULE_NOT_FOUND') {
-                err.message = 'NEED_PACKAGE_KOOT_ELECTRON';
-                console.log(' ');
-                log('error', __('safeguard.NEED_PACKAGE_KOOT_ELECTRON'));
-                console.log(' ');
-                console.log(' ');
-            }
-            throw err;
-        });
-    }
-};
-
-module.exports = safeguard;
diff --git a/packages/koot/libs/safeguard/app-type.js b/packages/koot/libs/safeguard/app-type.js
new file mode 100644
index 000000000..230477708
--- /dev/null
+++ b/packages/koot/libs/safeguard/app-type.js
@@ -0,0 +1,26 @@
+/* eslint-disable no-console */
+
+require('../../typedef');
+
+const logError = require('./libs/log-error');
+const __ = require('../../utils/translate');
+const getAppType = require('../../utils/get-app-type');
+const getAppTypeString = require('../../utils/get-app-type-string');
+const envUpdateAppType = require('../env/update-app-type');
+
+/**
+ * Safeguard: App Type
+ * - Ensure environment variables updated: `WEBPACK_BUILD_TYPE` `KOOT_PROJECT_TYPE` `KOOT_BUILD_TARGET`
+ * - If cannot get a valid app type, throw an error
+ * @async
+ * @param {AppConfig} appConfig
+ * @void
+ */
+module.exports = async (appConfig = {}) => {
+    const appType = await getAppType();
+    if (!appType) envUpdateAppType(getAppTypeString(appConfig.type));
+    if (!(await getAppType())) {
+        logError(__('safeguard.INVALID_CONFIG', { key: 'type' }));
+        throw new Error('INVALID_CONFIG:type');
+    }
+};
diff --git a/packages/koot/libs/safeguard/electron.js b/packages/koot/libs/safeguard/electron.js
new file mode 100644
index 000000000..87ced08be
--- /dev/null
+++ b/packages/koot/libs/safeguard/electron.js
@@ -0,0 +1,36 @@
+/* eslint-disable no-console */
+
+require('../../typedef');
+
+const resolve = require('resolve');
+
+const logError = require('./libs/log-error');
+const __ = require('../../utils/translate');
+const getCwd = require('../../utils/get-cwd');
+
+/**
+ * Safeguard: Electron
+ * - If module `koot-electron` not found, throw an error
+ * @async
+ * @param {AppConfig} appConfig
+ * @void
+ */
+module.exports = async (appConfig = {}) => {
+    const isElectronApp =
+        appConfig.target === 'electron' ||
+        process.env.KOOT_BUILD_TARGET === 'electron';
+    if (isElectronApp) {
+        await new Promise((r, reject) => {
+            resolve('koot-electron', { basedir: getCwd() }, (err, res) => {
+                if (err) reject(err);
+                else r(res);
+            });
+        }).catch((err) => {
+            if (err.code === 'MODULE_NOT_FOUND') {
+                err.message = 'NEED_PACKAGE_KOOT_ELECTRON';
+                logError(__('safeguard.NEED_PACKAGE_KOOT_ELECTRON'));
+            }
+            throw err;
+        });
+    }
+};
diff --git a/packages/koot/libs/safeguard/index.js b/packages/koot/libs/safeguard/index.js
new file mode 100644
index 000000000..16f2216dc
--- /dev/null
+++ b/packages/koot/libs/safeguard/index.js
@@ -0,0 +1,28 @@
+/* eslint-disable no-console */
+
+/**
+ * @module
+ * Safeguard mechanism for koot commands
+ */
+
+require('../../typedef');
+
+const safeNodejs = require('./nodejs');
+const safeAppType = require('./app-type');
+const safeElectron = require('./electron');
+
+// ============================================================================
+
+/**
+ * Safeguard mechanism for koot commands. If error occurs, throw Error
+ * @async
+ * @param {AppConfig} appConfig
+ * @void
+ */
+const safeguard = async (appConfig = {}) => {
+    await safeNodejs(appConfig);
+    await safeAppType(appConfig);
+    await safeElectron(appConfig);
+};
+
+module.exports = safeguard;
diff --git a/packages/koot/libs/safeguard/libs/log-error.js b/packages/koot/libs/safeguard/libs/log-error.js
new file mode 100644
index 000000000..cc16f2136
--- /dev/null
+++ b/packages/koot/libs/safeguard/libs/log-error.js
@@ -0,0 +1,10 @@
+/* eslint-disable no-console */
+
+const log = require('../../log');
+
+module.exports = (msg) => {
+    console.log(' ');
+    log('error', msg);
+    console.log(' ');
+    console.log(' ');
+};
diff --git a/packages/koot/libs/safeguard/nodejs.js b/packages/koot/libs/safeguard/nodejs.js
new file mode 100644
index 000000000..2433a6718
--- /dev/null
+++ b/packages/koot/libs/safeguard/nodejs.js
@@ -0,0 +1,31 @@
+/* eslint-disable no-console */
+
+require('../../typedef');
+
+const semver = require('semver');
+
+const logError = require('./libs/log-error');
+const __ = require('../../utils/translate');
+
+const kootPackage = require('../../package.json');
+
+/**
+ * Safeguard: Node.js
+ * - If _Node.js_ installed version dosenot meet requirement, throw an error
+ * @async
+ * @param {AppConfig} appConfig
+ * @void
+ */
+module.exports = async (appConfig = {}) => {
+    const { engines: { node: nodeRequired } = {} } = kootPackage;
+    const nodeLocal = semver.valid(semver.coerce(process.version));
+    if (!semver.satisfies(nodeLocal, nodeRequired)) {
+        logError(
+            __('safeguard.NODE_LOCAL_VERSION_NOT_SATISFIED', {
+                require: nodeRequired,
+                local: nodeLocal,
+            })
+        );
+        throw new Error('NODE_LOCAL_VERSION_NOT_SATISFIED');
+    }
+};
diff --git a/packages/koot/locales/en.json b/packages/koot/locales/en.json
index 10659f766..a44cc42a4 100644
--- a/packages/koot/locales/en.json
+++ b/packages/koot/locales/en.json
@@ -8,7 +8,8 @@
     },
     "safeguard": {
         "INVALID_CONFIG": "Invalid config: ${key}",
-        "NEED_PACKAGE_KOOT_ELECTRON": "Missing dependency: 'koot-electron'. Please install using 'npm install' or 'yarn add' command."
+        "NEED_PACKAGE_KOOT_ELECTRON": "Missing dependency: 'koot-electron'. Please install using 'npm install' or 'yarn add' command.",
+        "NODE_LOCAL_VERSION_NOT_SATISFIED": "Node.js on this system is not valid. Require: ${require} | Local: ${local}"
     },
     "validateConfig": {
         "error": {
diff --git a/packages/koot/locales/zh_cn.json b/packages/koot/locales/zh_cn.json
index 13df3b2e6..2829466ca 100644
--- a/packages/koot/locales/zh_cn.json
+++ b/packages/koot/locales/zh_cn.json
@@ -8,7 +8,8 @@
     },
     "safeguard": {
         "INVALID_CONFIG": "无效的配置: ${key}",
-        "NEED_PACKAGE_KOOT_ELECTRON": "缺少依赖包: 'koot-electron'。请使用 'npm install' 或 'yarn add' 进行安装。"
+        "NEED_PACKAGE_KOOT_ELECTRON": "缺少依赖包: 'koot-electron'。请使用 'npm install' 或 'yarn add' 进行安装。",
+        "NODE_LOCAL_VERSION_NOT_SATISFIED": "系统 Node.js 版本不符合要求。要求: ${require} | 本地系统: ${local}"
     },
     "validateConfig": {
         "error": {