Resource information processing method based on peer-to-peer network, peer-to-peer network and node

Provided is a resource information processing method based on a peer-to-peer (P2P) network. The method includes: a node of the P2P network has a domain identifier which is the same as that of the resource information saved by the node of the P2P network, wherein the domain identifier is determined according to the geographical location information of the node or resource information and the different domain identifiers correspond to different geographical location ranges. The method also includes: the node receives an operation request sent by the request side, wherein the operation request carries the geographical location information of the resource information to be operated; the node determines the domain identifier of the resource information according to the geographical location information in the operation request; if the node determines the domain identifier of the resource information to be operated is different from that of the node, it forwards the operation request to the node in the external domain, otherwise, it performs the intra-domain processing. The present invention also discloses a corresponding P2P network and node. The present invention can improve the system performance.