In　order　to　explore　the　synthesis　of　new　type　of　low　platinum　catalyst　for　proton　exchange　membrane　fuel　cells　with　high　catalytic　activity　and　stability,　a　phosphorus-doped　modified　carbon-supported　platinum　catalyst　(Px-Pt/C)　was　successfully　prepared　by　an　improved　impregnation　reduction　method.　The　electrochemical　performance　test　proves　that　the　catalytic　oxygen　reduction　reaction　(ORR)　performance　of　Pt/C　can　be　improved　by　phosphorus　doping.　The　mass　activity　(MA)　of　P1.5-Pt/C　is　1.6　times　higher　than　that　of　JM20Pt/C.　After　10　000　cycles　accelerated　durability　test,　the　electrochemical　surface　area　(ECSA)　of　P1.5-Pt/C　increases　by　2.92%,　with　MA　decreasing　by　43.87%,　while　the　ECSA　of　JM20Pt/C　decreases　by　33.7%,　with　MA　decreasing　by　53.33%,　respectively.　It　is　shown　that　phosphating　can　improve　the　ORR　catalytic　activity　and　stability　of　Pt/C　catalysts.　©　2022　Cailiao　Daobaoshe/　Materials　Review.　All　rights　reserved.