Abstract: At present, the way of application for search for the resource on the P2P network, such as overabundance message, heavy loads on the Telecom backbone and low efficiency, etc. is not perfect. In this paper, based on the current P2P model and delay of communication, a new P2P model is presented which logically groups the network and grades the node in the group. Then we build the in-group and between-group search mechanisms. The new P2P model obviously improves search efficiency and reduces the message of searching, and it also enhances the expansion ability in-group search mechanism of the whole network system.

Key words: P2P model, delay of communication, ranking in group, in-group search mechanism, between-group search mechanism