This is an HTML Sitemap which is supposed to be processed by search engines like
百度,
360 搜狗 and
搜狗.
With such a sitemap, it's much easier for the crawlers to see the complete structure of your site and retrieve it more efficiently.
More information about what
XML Sitemap is and how it can help you to get indexed by the major search engines can be found at
SitemapX.com.