Abstract: To solve how to find the Web Service that distribute different locations efficiently and exactly, a new discovery schema for service based on P2P network and semantic description was put forward. The peers in model dynamically registered to different peer-clusters, which were managed by broker according to their services- semantic classes, and friend peer-clusters which had the similar semantic classes came into being a virtual network, and it improved the efficiency of querying. Moreover, the schema adopted feedback to monitor the peers in net actively and splitting-converging to guarantee the abilities for available. With implementing the prototype, the reasonability and validity of the schema were proved.