With rapid growth of the Internet and communication technologies, many real-world activities were applied on the Internet, including Education, Entertainment, Academic activities, and Commerce, etc. We propose the nomadic media server (mobile media server) to achieve the maximum use of bandwidth. The distributed load of central server will be retrenched appropriately. At the same time, the security protection degree will be strengthened via the changeable server. actually we use the mobile server/storage pre-broadcasting technique, as well as a communication network optimization algorithm, which is based on a graph compute mechanism. The mobile server will play an important role in the future virtual society, both on narrow band and broadband environment. Chain store over the Internet is a rare management model in electronic commerce. In this paper, we construct many chain stores via nomadic media server.