Fabricating　self-driven　UV　detection　photodetectors　based　on　PbI2　materials　remains　a　challenging　issue　due　to　chemical　disorder　and　Fermi-level　pinning.　Here,　we　propose　a　self-driven　PbI2-based　ultraviolet　photodetector,　in　which　metal　electrodes　and　graphene　are　prefabricated　and　physically　laminated　onto　PbI2.　The　self-driven　photodetector　demonstrates　an　ultrafast　response　time　(rise:　3.76,　fall:　3.81　mu　s).　Furthermore,　the　photodetector　exhibits　high　responsivity　(18.7　A/W),　detectivity　(1.56　x　10(11)　Jones),　and　external　quantum　efficiency　(6206%).　The　excellent　performance　is　attributed　to　the　clean　metal-semiconductor　interface　and　the　asymmetric　heterojunction,　which　lead　to　a　more　efficient　and　faster　collection　of　photogenerated　carriers.　These　results　highlight　the　potential　of　PbI2　for　high-speed　UV　detection　and　propose　an　effective　approach　for　improving　2D　material-based　photodetectors.