diff --git a/app/Http/Controllers/AdminController.php b/app/Http/Controllers/AdminController.php
index 8b0faa02..7a694e2a 100644
--- a/app/Http/Controllers/AdminController.php
+++ b/app/Http/Controllers/AdminController.php
@@ -233,8 +233,14 @@ class AdminController extends Controller
             $form->textarea('meta_extras')->rows(6);
         })->handle();
 
+        $recaptcha = Option::form('recaptcha', 'reCAPTCHA', function ($form) {
+            $form->text('recaptcha_sitekey', 'sitekey');
+            $form->text('recaptcha_secretkey', 'secretkey');
+            $form->checkbox('recaptcha_mirror')->label();
+        })->handle();
+
         return view('admin.options')
-            ->with('forms', compact('general', 'announ', 'meta'));
+            ->with('forms', compact('general', 'announ', 'meta', 'recaptcha'));
     }
 
     public function resource(Request $request)
diff --git a/app/Http/Controllers/AuthController.php b/app/Http/Controllers/AuthController.php
index fe75e91e..ce0de1c3 100644
--- a/app/Http/Controllers/AuthController.php
+++ b/app/Http/Controllers/AuthController.php
@@ -10,6 +10,7 @@ use Session;
 use App\Events;
 use App\Models\User;
 use App\Models\Player;
+use App\Rules\Captcha;
 use App\Mail\ForgotPassword;
 use Illuminate\Http\Request;
 use Illuminate\Support\Facades\Auth;
@@ -43,7 +44,7 @@ class AuthController extends Controller
         $loginFails = (int) Cache::get($loginFailsCacheKey, 0);
 
         if ($loginFails > 3) {
-            $this->validate($request, ['captcha' => 'required|captcha']);
+            $this->validate($request, ['captcha' => ['required', new Captcha]]);
         }
 
         if (! $user) {
@@ -83,7 +84,12 @@ class AuthController extends Controller
     public function register()
     {
         if (option('user_can_register')) {
-            return view('auth.register', ['extra' => ['player' => option('register_with_player_name')]]);
+            return view('auth.register', [
+                'extra' => [
+                    'player' => option('register_with_player_name'),
+                    'recaptcha' => option('recaptcha_sitekey'),
+                ]
+            ]);
         } else {
             throw new PrettyPageException(trans('auth.register.close'), 7);
         }
@@ -101,7 +107,7 @@ class AuthController extends Controller
         $data = $this->validate($request, array_merge([
             'email'    => 'required|email|unique:users',
             'password' => 'required|min:8|max:32',
-            'captcha'  => 'required'.(app()->environment('testing') ? '' : '|captcha'),
+            'captcha'  => ['required', new Captcha],
         ], $rule));
 
         if (option('register_with_player_name')) {
diff --git a/app/Rules/Captcha.php b/app/Rules/Captcha.php
new file mode 100644
index 00000000..9a1e4190
--- /dev/null
+++ b/app/Rules/Captcha.php
@@ -0,0 +1,43 @@
+<?php
+
+namespace App\Rules;
+
+use Illuminate\Contracts\Validation\Rule;
+
+class Captcha implements Rule
+{
+    public function passes($attribute, $value)
+    {
+        if (app()->environment('testing')) {
+            return true;
+        }
+
+        $secretkey = option('recaptcha_secretkey');
+        if ($secretkey) {
+            $client = new \GuzzleHttp\Client();
+            $url = option('recaptcha_mirror')
+                ? 'https://www.recaptcha.net/recaptcha/api/siteverify'
+                : 'https://www.google.com/recaptcha/api/siteverify';
+            $response = $client->post($url, [
+                'form_params' => [
+                    'secret' => $secretkey,
+                    'response' => $value,
+                ]
+            ]);
+            if ($response->getStatusCode() == 200) {
+                $body = json_decode((string) $response->getBody());
+                return $body->success;
+            }
+            return false;
+        }
+
+        return captcha_check($value);
+    }
+
+    public function message()
+    {
+        return option('recaptcha_secretkey')
+            ? trans('validation.recaptcha')
+            : trans('validation.captcha');
+    }
+}
diff --git a/config/options.php b/config/options.php
index ac9c7eb6..a36ff41c 100644
--- a/config/options.php
+++ b/config/options.php
@@ -50,4 +50,7 @@ return [
     'meta_description'          => '',
     'meta_extras'               => '',
     'cdn_address'               => '',
+    'recaptcha_sitekey'         => '',
+    'recaptcha_secretkey'       => '',
+    'recaptcha_mirror'          => 'false',
 ];
diff --git a/package.json b/package.json
index a71c57e5..bcecde8b 100644
--- a/package.json
+++ b/package.json
@@ -28,6 +28,7 @@
     "toastr": "^2.1.4",
     "vue": "^2.6.9",
     "vue-good-table": "^2.16.3",
+    "vue-recaptcha": "^1.1.1",
     "vue-upload-component": "^2.8.19",
     "vuejs-paginate": "^2.1.0"
   },
diff --git a/resources/assets/src/components/Captcha.vue b/resources/assets/src/components/Captcha.vue
new file mode 100644
index 00000000..18b04eb4
--- /dev/null
+++ b/resources/assets/src/components/Captcha.vue
@@ -0,0 +1,59 @@
+<template>
+  <div v-if="recaptcha" class="row">
+    <div class="col-xs-12" style="padding-bottom: 5px">
+      <vue-recaptcha :sitekey="recaptcha" @verify="$emit('change', $event)" />
+    </div>
+  </div>
+  <div v-else class="row">
+    <div class="col-xs-8">
+      <div class="form-group has-feedback">
+        <input
+          ref="captcha"
+          type="text"
+          class="form-control"
+          :placeholder="$t('auth.captcha')"
+          @input="$emit('change', $event.target.value)"
+        >
+      </div>
+    </div>
+    <div class="col-xs-4">
+      <img
+        class="pull-right captcha"
+        :src="`${baseUrl}/auth/captcha?v=${time}`"
+        alt="CAPTCHA"
+        :title="$t('auth.change-captcha')"
+        data-placement="top"
+        data-toggle="tooltip"
+        @click="refreshCaptcha"
+      >
+    </div>
+  </div>
+</template>
+
+<script>
+import VueRecaptcha from 'vue-recaptcha'
+
+export default {
+  name: 'Captcha',
+  components: {
+    VueRecaptcha,
+  },
+  props: {
+    baseUrl: {
+      type: String,
+      default: blessing.base_url,
+    },
+  },
+  data() {
+    return {
+      time: Date.now(),
+      recaptcha: blessing.extra.recaptcha,
+    }
+  },
+  methods: {
+    refreshCaptcha() {
+      this.time = Date.now()
+    },
+  },
+}
+</script>
diff --git a/resources/assets/src/components/mixins/updateCaptcha.ts b/resources/assets/src/components/mixins/updateCaptcha.ts
new file mode 100644
index 00000000..b74fb54e
--- /dev/null
+++ b/resources/assets/src/components/mixins/updateCaptcha.ts
@@ -0,0 +1,12 @@
+import Vue from 'vue'
+
+export default Vue.extend({
+  data: () => ({
+    captcha: '',
+  }),
+  methods: {
+    updateCaptcha(value: string) {
+      this.captcha = value
+    },
+  },
+})
diff --git a/resources/assets/src/views/auth/Login.vue b/resources/assets/src/views/auth/Login.vue
index c4dcf0df..52617def 100644
--- a/resources/assets/src/views/auth/Login.vue
+++ b/resources/assets/src/views/auth/Login.vue
@@ -21,30 +21,7 @@
       <span class="glyphicon glyphicon-lock form-control-feedback" />
     </div>
 
-    <div v-if="tooManyFails" class="row">
-      <div class="col-xs-8">
-        <div class="form-group has-feedback">
-          <input
-            ref="captcha"
-            v-model="captcha"
-            type="text"
-            class="form-control"
-            :placeholder="$t('auth.captcha')"
-          >
-        </div>
-      </div>
-      <div class="col-xs-4">
-        <img
-          class="pull-right captcha"
-          :src="`${baseUrl}/auth/captcha?v=${time}`"
-          alt="CAPTCHA"
-          :title="$t('auth.change-captcha')"
-          data-placement="top"
-          data-toggle="tooltip"
-          @click="refreshCaptcha"
-        >
-      </div>
-    </div>
+    <captcha v-if="tooManyFails" ref="captcha" @change="updateCaptcha" />
 
     <div class="callout callout-info" :class="{ hide: !infoMsg }">{{ infoMsg }}</div>
     <div class="callout callout-warning" :class="{ hide: !warningMsg }">{{ warningMsg }}</div>
@@ -81,9 +58,17 @@
 
 <script>
 import { swal } from '../../js/notify'
+import Captcha from '../../components/Captcha.vue'
+import updateCaptcha from '../../components/mixins/updateCaptcha'
 
 export default {
   name: 'Login',
+  components: {
+    Captcha,
+  },
+  mixins: [
+    updateCaptcha,
+  ],
   props: {
     baseUrl: {
       type: String,
@@ -96,7 +81,6 @@ export default {
       password: '',
       captcha: '',
       remember: false,
-      time: Date.now(),
       tooManyFails: blessing.extra.tooManyFails,
       infoMsg: '',
       warningMsg: '',
@@ -121,12 +105,6 @@ export default {
         return
       }
 
-      if (this.tooManyFails && !captcha) {
-        this.infoMsg = this.$t('auth.emptyCaptcha')
-        this.$refs.captcha.focus()
-        return
-      }
-
       this.pending = true
       const {
         errno, msg, login_fails: loginFails,
@@ -149,15 +127,12 @@ export default {
           swal({ type: 'error', text: this.$t('auth.tooManyFails') })
           this.tooManyFails = true
         }
-        this.refreshCaptcha()
         this.infoMsg = ''
         this.warningMsg = msg
         this.pending = false
+        this.$refs.captcha.refreshCaptcha()
       }
     },
-    refreshCaptcha() {
-      this.time = Date.now()
-    },
   },
 }
 </script>
diff --git a/resources/assets/src/views/auth/Register.vue b/resources/assets/src/views/auth/Register.vue
index 20a62648..7dde105b 100644
--- a/resources/assets/src/views/auth/Register.vue
+++ b/resources/assets/src/views/auth/Register.vue
@@ -64,30 +64,7 @@
       <span class="glyphicon glyphicon-pencil form-control-feedback" />
     </div>
 
-    <div class="row">
-      <div class="col-xs-8">
-        <div class="form-group has-feedback">
-          <input
-            ref="captcha"
-            v-model="captcha"
-            type="text"
-            class="form-control"
-            :placeholder="$t('auth.captcha')"
-          >
-        </div>
-      </div>
-      <div class="col-xs-4">
-        <img
-          class="pull-right captcha"
-          :src="`${baseUrl}/auth/captcha?v=${time}`"
-          alt="CAPTCHA"
-          :title="$t('auth.change-captcha')"
-          data-placement="top"
-          data-toggle="tooltip"
-          @click="refreshCaptcha"
-        >
-      </div>
-    </div>
+    <captcha ref="captcha" @change="updateCaptcha" />
 
     <div class="callout callout-info" :class="{ hide: !infoMsg }">{{ infoMsg }}</div>
     <div class="callout callout-warning" :class="{ hide: !warningMsg }">{{ warningMsg }}</div>
@@ -114,9 +91,17 @@
 
 <script>
 import { swal } from '../../js/notify'
+import Captcha from '../../components/Captcha.vue'
+import updateCaptcha from '../../components/mixins/updateCaptcha'
 
 export default {
   name: 'Register',
+  components: {
+    Captcha,
+  },
+  mixins: [
+    updateCaptcha,
+  ],
   props: {
     baseUrl: {
       type: String,
@@ -130,7 +115,6 @@ export default {
     nickname: '',
     playerName: '',
     captcha: '',
-    time: Date.now(),
     infoMsg: '',
     warningMsg: '',
     pending: false,
@@ -184,12 +168,6 @@ export default {
         return
       }
 
-      if (!captcha) {
-        this.infoMsg = this.$t('auth.emptyCaptcha')
-        this.$refs.captcha.focus()
-        return
-      }
-
       this.pending = true
       const { errno, msg } = await this.$http.post(
         '/auth/register',
@@ -207,13 +185,10 @@ export default {
       } else {
         this.infoMsg = ''
         this.warningMsg = msg
-        this.refreshCaptcha()
+        this.$refs.captcha.refreshCaptcha()
         this.pending = false
       }
     },
-    refreshCaptcha() {
-      this.time = Date.now()
-    },
   },
 }
 </script>
diff --git a/resources/assets/tests/components/Captcha.test.ts b/resources/assets/tests/components/Captcha.test.ts
new file mode 100644
index 00000000..806aa78e
--- /dev/null
+++ b/resources/assets/tests/components/Captcha.test.ts
@@ -0,0 +1,23 @@
+import { mount } from '@vue/test-utils'
+import Captcha from '@/components/Captcha.vue'
+
+test('display recaptcha', () => {
+  blessing.extra = { recaptcha: 'sitekey' }
+  const wrapper = mount(Captcha)
+  expect(wrapper.find('img').exists()).toBeFalse()
+})
+
+test('display characters captcha', () => {
+  blessing.extra = {}
+  const wrapper = mount(Captcha)
+  expect(wrapper.find('img').exists()).toBeTrue()
+  wrapper.find('input').setValue('abc')
+  expect(wrapper.emitted().change[0][0]).toBe('abc')
+})
+
+test('refresh captcha', () => {
+  jest.spyOn(Date, 'now')
+  const wrapper = mount(Captcha)
+  wrapper.find('img').trigger('click')
+  expect(Date.now).toBeCalledTimes(2)
+})
diff --git a/resources/assets/tests/components/mixins/updateCaptcha.test.ts b/resources/assets/tests/components/mixins/updateCaptcha.test.ts
new file mode 100644
index 00000000..6e77ac22
--- /dev/null
+++ b/resources/assets/tests/components/mixins/updateCaptcha.test.ts
@@ -0,0 +1,8 @@
+import { mount } from '@vue/test-utils'
+import updateCaptcha from '@/components/mixins/updateCaptcha'
+
+test('update captcha', () => {
+  const wrapper = mount(updateCaptcha)
+  wrapper.vm.updateCaptcha('value')
+  expect(wrapper.vm.captcha).toBe('value')
+})
diff --git a/resources/assets/tests/views/auth/Login.test.ts b/resources/assets/tests/views/auth/Login.test.ts
index 7d440582..7460605f 100644
--- a/resources/assets/tests/views/auth/Login.test.ts
+++ b/resources/assets/tests/views/auth/Login.test.ts
@@ -11,14 +11,6 @@ test('show captcha if too many login fails', () => {
   expect(wrapper.find('img').attributes('src')).toMatch(/\/auth\/captcha\?v=\d+/)
 })
 
-test('click to refresh captcha', () => {
-  window.blessing.extra = { tooManyFails: true }
-  jest.spyOn(Date, 'now')
-  const wrapper = mount(Login)
-  wrapper.find('img').trigger('click')
-  expect(Date.now).toBeCalledTimes(2)
-})
-
 test('login', async () => {
   window.blessing.extra = { tooManyFails: false }
   Vue.prototype.$http.post
@@ -55,9 +47,6 @@ test('login', async () => {
   expect(swal).toBeCalledWith({ type: 'error', text: 'auth.tooManyFails' })
   expect(wrapper.find('img').exists()).toBeTrue()
 
-  button.trigger('click')
-  expect(info.text()).toBe('auth.emptyCaptcha')
-
   wrapper.find('[type="text"]').setValue('a')
   wrapper.find('[type="checkbox"]').setChecked()
   button.trigger('click')
diff --git a/resources/assets/tests/views/auth/Register.test.ts b/resources/assets/tests/views/auth/Register.test.ts
index a5fdf52b..12e2858c 100644
--- a/resources/assets/tests/views/auth/Register.test.ts
+++ b/resources/assets/tests/views/auth/Register.test.ts
@@ -7,13 +7,6 @@ jest.mock('@/js/notify')
 
 window.blessing.extra = { player: false }
 
-test('click to refresh captcha', () => {
-  jest.spyOn(Date, 'now')
-  const wrapper = mount(Register)
-  wrapper.find('img').trigger('click')
-  expect(Date.now).toBeCalledTimes(2)
-})
-
 test('require player name', () => {
   window.blessing.extra = { player: true }
 
@@ -74,10 +67,6 @@ test('register', async () => {
 
   wrapper.findAll('[type="text"]').at(0)
     .setValue('abc')
-  button.trigger('click')
-  expect(Vue.prototype.$http.post).not.toBeCalled()
-  expect(info.text()).toBe('auth.emptyCaptcha')
-
   wrapper.findAll('[type="text"]').at(1)
     .setValue('captcha')
   button.trigger('click')
diff --git a/resources/lang/en/options.yml b/resources/lang/en/options.yml
index 627462dc..e648a277 100644
--- a/resources/lang/en/options.yml
+++ b/resources/lang/en/options.yml
@@ -146,6 +146,11 @@ meta:
   meta_extras:
     title: Other Custom <meta> Tags
 
+recaptcha:
+  recaptcha_mirror:
+    title: 3rd-party Mirror
+    label: Chinese users only.
+
 res-warning: This page is ONLY for advanced users. If you aren't familiar with these, please don't modify them!
 
 resources:
diff --git a/resources/lang/en/validation.yml b/resources/lang/en/validation.yml
index b65c4699..74964d40 100644
--- a/resources/lang/en/validation.yml
+++ b/resources/lang/en/validation.yml
@@ -49,6 +49,7 @@ min:
 not_in: 'The selected :attribute is invalid.'
 numeric: 'The :attribute must be a number.'
 present: 'The :attribute field must be present.'
+recaptcha: 'reCAPTCHA validation failed.'
 regex: 'The :attribute format is invalid.'
 required: 'The :attribute field is required.'
 required_if: 'The :attribute field is required when :other is :value.'
diff --git a/resources/lang/zh_CN/options.yml b/resources/lang/zh_CN/options.yml
index c7a4bead..c44b84c5 100644
--- a/resources/lang/zh_CN/options.yml
+++ b/resources/lang/zh_CN/options.yml
@@ -146,6 +146,11 @@ meta:
   meta_extras:
     title: 其它自定义 <meta> 标签
 
+recaptcha:
+  recaptcha_mirror:
+    title: 第三方镜像
+    label: 国内用户请勾选此项
+
 res-warning: 本页面仅供高级用户使用。如果您不清楚这些设置的含义，请不要随意修改它们！
 
 resources:
diff --git a/resources/lang/zh_CN/validation.yml b/resources/lang/zh_CN/validation.yml
index 942900d5..f5bf11ab 100644
--- a/resources/lang/zh_CN/validation.yml
+++ b/resources/lang/zh_CN/validation.yml
@@ -52,6 +52,7 @@ min:
 not_in: '已选的属性 :attribute 非法。'
 numeric: ':attribute 必须是一个数字。'
 present: ':attribute 必须存在。'
+recaptcha: '未能通过 reCAPTCHA 的验证。'
 regex: ':attribute 格式不正确。'
 required: ':attribute 不能为空。'
 required_if: '当 :other 为 :value 时 :attribute 不能为空。'
diff --git a/resources/views/admin/options.blade.php b/resources/views/admin/options.blade.php
index 32c13a98..52e681a2 100644
--- a/resources/views/admin/options.blade.php
+++ b/resources/views/admin/options.blade.php
@@ -25,6 +25,8 @@
                 {!! $forms['announ']->render() !!}
 
                 {!! $forms['meta']->render() !!}
+
+                {!! $forms['recaptcha']->render() !!}
             </div>
 
         </div>
diff --git a/resources/views/auth/login.blade.php b/resources/views/auth/login.blade.php
index 76511fd4..da920dc5 100644
--- a/resources/views/auth/login.blade.php
+++ b/resources/views/auth/login.blade.php
@@ -23,11 +23,14 @@
     <!-- /.login-box-body -->
 </div>
 <!-- /.login-box -->
-
+@include('common.recaptcha')
 <script>
 Object.defineProperty(blessing, 'extra', {
     configurable: false,
-    get: () => Object.freeze(@json(['tooManyFails' => cache(sha1('login_fails_'.get_client_ip())) > 3]))
+    get: () => Object.freeze(@json([
+        'tooManyFails' => cache(sha1('login_fails_'.get_client_ip())) > 3,
+        'recaptcha' => option('recaptcha_sitekey'),
+    ]))
 })
 </script>
 
diff --git a/resources/views/auth/register.blade.php b/resources/views/auth/register.blade.php
index 11953560..19ca5ff3 100644
--- a/resources/views/auth/register.blade.php
+++ b/resources/views/auth/register.blade.php
@@ -17,7 +17,7 @@
     <!-- /.form-box -->
 </div>
 <!-- /.register-box -->
-
+@include('common.recaptcha')
 <script>
 Object.defineProperty(blessing, 'extra', {
     get: () => Object.freeze(@json($extra)),
diff --git a/resources/views/common/recaptcha.blade.php b/resources/views/common/recaptcha.blade.php
new file mode 100644
index 00000000..22ea2773
--- /dev/null
+++ b/resources/views/common/recaptcha.blade.php
@@ -0,0 +1,11 @@
+@if (option('recaptcha_sitekey'))
+<script
+    src="https://www.{{ option('recaptcha_mirror')
+        ? 'recaptcha.net'
+        : 'google.com'
+    }}/recaptcha/api.js?onload=vueRecaptchaApiLoaded&render=explicit"
+    async
+    defer
+>
+</script>
+@endif
diff --git a/tests/AdminControllerTest.php b/tests/AdminControllerTest.php
index 13d1c2ce..4e0ee031 100644
--- a/tests/AdminControllerTest.php
+++ b/tests/AdminControllerTest.php
@@ -159,6 +159,15 @@ class AdminControllerTest extends BrowserKitTestCase
             ->see('<meta name="keywords" content="kw">')
             ->see('<meta name="description" content="desc">')
             ->see('<!-- nothing -->');
+
+        $this->visit('/admin/options')
+            ->type('key', 'recaptcha_sitekey')
+            ->type('secret', 'recaptcha_secretkey')
+            ->check('recaptcha_mirror')
+            ->press('submit_recaptcha');
+        $this->assertEquals('key', option('recaptcha_sitekey'));
+        $this->assertEquals('secret', option('recaptcha_secretkey'));
+        $this->assertTrue(option('recaptcha_mirror'));
     }
 
     public function testResource()
diff --git a/yarn.lock b/yarn.lock
index e36b61ad..aab110d4 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -8557,6 +8557,11 @@ vue-loader@^15.7.0:
     vue-hot-reload-api "^2.3.0"
     vue-style-loader "^4.1.0"
 
+vue-recaptcha@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.npmjs.org/vue-recaptcha/-/vue-recaptcha-1.1.1.tgz#be38f4ffab500e7f4775f149a279bb962cf91f07"
+  integrity sha512-ThjujwmoLrDS6EeE7AGHmeGfWDhFOFUAyfPfSCXojYMoSwFOJv0LL0/86PqHwjHM69HIq0kBI9ps+JeIQa5V/A==
+
 vue-style-loader@^4.1.0:
   version "4.1.2"
   resolved "https://registry.npmjs.org/vue-style-loader/-/vue-style-loader-4.1.2.tgz#dedf349806f25ceb4e64f3ad7c0a44fba735fcf8"