Web cache management system and web cache management method thereof

A web cache management system and a web cache management method thereof are disclosed. The web cache management system is used to respond to a request of a user-end device when browsing a web. The web cache management system includes a DNS server, a cache module, and a database. The DNS server is used to receive the request and return an IP address to the user-end device. The IP address points to the cache module, whereby the user-end device is connected to the cache module, so as to return a corresponding web page data to the user-end device according to the request of the user-end device. When the cache module has no the corresponding web page data, the cache module is connected to the database to receive the web page data, to back up the web page data and transmit the web page data to the user-end device.