Method for group members simultaneously watching IPTV, its server and client

The invention discloses a method that group members watch network TV at the same time, applied to P2P network TV direct transmission. A group client-side logging group server sends request of obtaining network TV program information. The said group server returns the tolerant network TV channel identification information to the said group client-side or returns the network TV channel identification information currently watched by the other members in the said group; or at the same time returns the tolerant network TV channel identification information of the group and the network TV channel identification information currently watched by the other members in the said group. The said group client-side provides the network TV channel identification information returned by the said group server for subscriber selection and sends request of obtaining the corresponding program to play to P2P network program server for providing network TV program and P2P network management based on the selected network TV channel. Using the said invention, the members of the same group can watch network TV at the same time and chat with each other.