The invention relates to a P2P file-sharing service network framework, comprising a user entity, an Agent-Call Session Control Function entity, a Timetable-Call Session Control Function entity, a Service-Call Session Control Function entity, an application server, and an attribution user server. The invention is characterized in that the application server is an index server to realize P2P file-sharing service. The user entity is provided with a P2P file-sharing service function module; the index server is respectively connected with the attribution user server and the Service-Call Session Control Function entity; the user entity is connected with the Agent-Call Session Control Function entity. The invention can effectively realize the discontinuity of the mobile and roaming services of the users, allow wired and wireless users to participate simultaneously, and realize uniform standard protocol specification, provide effective management and copyright protection, improve service performance by a buffer, and expand service contents by a custom server.