Content distribution system and a content distribution method

Without reducing the user's QoE, to be able to serve content. Cache server connected to the packet transfer apparatus for transferring a packet transmitted and received between the storage device and a user terminal for storing management content, from at least a portion temporarily stores the control device terminals managed content to determine the screen resolution of the terminal based on the information included in the content request message, select a cache server for storing contents of said screen resolution instructed to deliver content to the cache server selected receives an instruction cache server, calculates the bit rate when delivering content based on a signal received from a terminal, a file or stream of the requested content from the terminal, has said screen resolution, the bit rate or less reading ones, and transmits the stored packets of a given protocol. (Fig. 1)