The　work　aims　to　analyze　the　internal　relations　among　the　adhesion　characteristics,　processing　system　and　tool　damage　to　satisfy　the　increasingly　prominent　processing　needs　of　beryllium　copper.　The　multidimensional　orthogonal　test　method　was　adopted　to　analyze　the　internal　relations　between　the　morphology　of　the　tool＇s　contact　surface　and　force　fluctuation　by　establishing　the　mechanical　force　model　of　the　tool’s　microscopic　crystal.　The　wear,　milling　characteristics　and　bonding　process　of　the　tool　were　analyzed　from　the　force,　spectrum　analysis　and　adhesive　form,　and　the　tool　surface　and　the　morphology　of　the　adhesive　after　wear　were　classified　and　characterized　by　scanning　electron　microscope.　The　adhesion　in　machining　increased　with　the　increase　of　tool　diameter　at　the　same　cutting　speed,　and　the　processing　parameters　were　only　significantly　changed　to　Fx　due　to　the　different　force　environment　of　tool　adhesive　before　and　after　milling.　By　contrasting　the　form　of　adhesive　and　tool　damage　and　the　tool　morphology　under　different　processing　parameters,　the　surface　form　of　tool　adhesive,　wear,　breakage　and　falling　was　considered.　Unstable　adhesion　process　had　certain　protective　effect　at　the　beginning　of　the　processing,　but　as　the　adhesive　increased　continuously,　the　lateral　force　of　adhesive　also　increased,　which　increased　the　actual　damage　to　the　tool.　Adhesion　property　is　an　important　factor　affecting　tool　life　in　the　actual　processing,　and　the　mutual　interference　of　impact　and　wear　frequency　increases　the　effect　of　adhesive　property　on　tool　wear　in　the　actual　processing.　©　2019,　Chongqing　Wujiu　Periodicals　Press.　All　rights　reserved.