In　order　to　accurately　and　timely　fabricate　custom　titanium　implants,　a　method　was　proposed,　which　built　a　lost　model　of　the　custom　implants　and　an　injection　mold　by　stereolithography　3D　printing.　The　results　show　that　by　this　method,　the　titanium　implants　can　reflect　the　patient＇s　individual　characteristics　accurately.　The　chemical　composition,　mechanical　properties　and　precision　of　the　custom　implants　are　appropriate　to　meet　the　clinical　implantation　requirements　of　the　national　standards　and　the　pharmaceutical　industry　standards.　More　than　100　clinical　cases　of　custom　implant　has　been　implemented　successfully.