In　recent　years,　lead　halide　perovskites　have　shown　excellent　performance　in　photovoltaic　devices　and　photodetectors　due　to　its　excellent　semiconductor　properties　and　have　become　a　hot　spot　in　materials　science.Doping　rare　earth　elements　is　a　promising　way　to　improve　the　performances　of　lead　halide　perovskites.　In　this　paper,　we　review　the　latest　research　progress　of　rare　earths　doped　lead　halide　perovskite　materials　in　the　preparation,　structures,　properties,　as　well　as　radiation　detectors.　The　doped　rare　earths　introduce　new　luminescent　centers　and　energy　levels　for　new　luminescence　properties,　improving　the　crystallinity　and　semiconductor　performances　of　perovskite　crystals.　Therefore,　rare　earth　doping　can　further　improve　the　performance　of　lead　halide　perovskite　radiation　detectors.