The invention discloses a resource searching method for an unstructured P2P network. The method includes the steps that an identifier is distributed to each node in the network, and front-rear nodes, neighbor tables and table items of the neighbor tables of all the nodes are defined; the node which initiates a resource query request sends query information for increasing forwarding sections to a neighbor node in all the table items in the corresponding neighbor table of the node; if resources are inquired, successful searching information is sent to the node which initiates the resource query request; if inquiring fails, the neighbor nodes forward the query information for increasing forwarding sections to the neighbor nodes in a neighbor node forwarding section according to the table items in the neighbor tables of the neighbor nodes; the previous step is executed again until the resources are inquired or all the nodes have already been inquired. According to the technical scheme, the problem of redundant messages in flooding search is solved, resource searching expandability and efficiency of the unstructured P2P network are improved, and therefore the usability of the unstructured P2P network is improved.