Torrent is the new technology for exchanging the files between each private person without handling of system operator. But it has a harmful disadvantages to digital contents owner cause the contents file could be transmitted with many divided files pieces even illegal copyright content. Also it could not be traced who is the heavy loader. By this reason, Torrent is known as the illegal content provide technology and many service provider like webserver manager, is now protecting the service to users.
This paper shows the way of safe usages to contents for both of owner and torrent service provide.