2 ways:
1) Javascript
Step 1: Include the JavaScript SDK on your page once, ideally right after the opening body tag.
<div id="fb-root"></div>
<script>(function(d, s, id) {
var js, fjs = d.getElementsByTagName(s)[0];
if (d.getElementById(id)) return;
js = d.createElement(s); js.id = id;
js.src = 'https://connect.facebook.net/en_US/sdk.js#xfbml=1&version=v3.1';
fjs.parentNode.insertBefore(js, fjs);
}(document, 'script', 'facebook-jssdk'));</script>
Step 2: Place this code wherever you want the plugin to appear on your page.
<div class="fb-page" data-href="https://www.facebook.com/google" data-tabs="timeline" data-small-header="false" data-adapt-container-width="true" data-hide-cover="false" data-show-facepile="true"><blockquote cite="https://www.facebook.com/google" class="fb-xfbml-parse-ignore"><a href="https://www.facebook.com/google">Google</a></blockquote></div>
2) iframe
Place this code wherever you want the plugin to appear on your page.
<iframe src="https://www.facebook.com/plugins/page.php?href=https%3A%2F%2Fwww.facebook.com%2Fgoogle&tabs=timeline&width=340&height=500&small_header=false&adapt_container_width=true&hide_cover=false&show_facepile=true&appId" width="340" height="500" style="border:none;overflow:hidden" scrolling="no" frameborder="0" allowTransparency="true" allow="encrypted-media"></iframe>
Source: Facebook
The Page plugin lets you easily embed and promote any public Facebook Page on your website. Just like on Facebook, your visitors can like and share the Page without leaving your site. You can use the Page plugin for any Page that is not restricted, for example, by country or age.
https://developers.facebook.com/docs/plugins/page-plugin/