Face　of　the　shortage　of　the　traditional　network　information　security　system,　we　put　forward　the　conception　of　Trusted　Network　Connect.　We　take　the　initiative　of　the　defense　protection　measures.　The　measure　of　the　credibility　is　an　important　part　of　the　trusted　network.　In　this　paper,　we　propose　the　model　of　trusted　network　connect　based　on　credibility　of　the　hierarchy,　and　credibility　is　divided　by　different　factors.　We　measure　and　analyze　the　credibility　by　AHP.　First,　we　should　establish　the　model　of　trusted　network　connect　based　on　credibility　of　hierarchical　analysis.　Second,　we　should　measure　the　model　and　analyze　the　model.　Finally,　we　must　calculate　all　number　which　is　affect　by　all　credible　factors.　After　analysis,　with　the　transmission　chain　of　trust,　the　factors　of　impact　credibility　are　gradually　weakened.　©　2010　IEEE.