The　structure　has　been　put　forward　of　P2P　systems　are　strictly　based　on　the　keyword　matching　to　find　the　way　of　routing　resources,　so　the　routing　mechanism　will　not　be　able　to　reflect　the　massive,　distributed　resources,　and　semantic　information,　thus　reducing　the　precision　of　service　discovery　and　search　prospective　rate.　Semantic　Web　as　the　next　generation　of　the　embryonic　form　of　the　World　Wide　Web,　which　supports　the　semantic　search　query　and　increase　the　efficiency　of　the　realization　of　intelligent　search.　Based　on　the　Pastry　system,　a　typical　P2P　system,　advanced　a　new　type　of　ontology　semantic　Web　Service　discovery　model,　and　made　in-depth　discussions　in　how　to　make　semantics　and　peer-to-peer　networks　integration.　©　2010　IEEE.