In　the　information　age,　with　the　development　of　internet　technology,　there　are　more　and　more　various　business　services,　at　the　same　time,　network　security　issues　are　also　increasing.　However,　traditional　protection　methods　are　gradually　hard　to　cope　with　the　complex　network　environment.　Aiming　at　the　credible　connection　establishment　and　data　communication　problems　that　need　to　be　solved　urgently　in　the　credible　network,　an　interentity　communication　mechanism　based　on　end-to-end　credibility　assessment　is　proposed.　This　mechanism　combines　trusted　computing　with　network　access　control　mechanisms,　integrates　network　access　authority　control　technology,　server　identity　authentication　technology,　communication　subject　measurement　technology　and　network　link　transparent　encryption　technology,　adopts　real-time　monitoring　of　terminal　status,　dynamic　adjustment　of　access　authorities,　optimized　network　access　control　mechanism　and　data　transmission　method,　to　against　security　issues　of　the　network　communication.　After　security　analysis,　this　mechanism　improves　the　security　of　the　connection　and　communication　between　the　terminal　and　the　network.　It　can　effectively　avoid　security　threats　to　information　systems,　and　make　the　service　of　the　information　system　safe　and　reliable.　©　Published　under　licence　by　IOP　Publishing　Ltd.