NOVELTY - A platinum (Pt)-Nafion (RTM: sulfonated tetrafluoroethylene based fluoropolymer-copolymer)/carbon (C) catalyst comprises 1-20 wt.% Pt, 1-70 wt.% Nafion polymer and 10-98 wt.% C.    USE - Pt-Nafion/C catalyst used as proton exchange membrane fuel cell oxygen reduction catalyst or hydroxide catalyst (claimed).    ADVANTAGE - The catalyst has low precious metal Pt carrying quantity, high catalytic activity and capability of being manufactured on large scale and is stable.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the preparation of catalyst comprising adding 3-7 M carbon carrier to oxidizing agent, stirring to form a homogeneous slurry, refluxing for 4-8 hours and filtering obtain solid material, washing with deionized water, air-drying at 100-140 degrees C for 4-8 hours to obtain functional carbon carrier; dissolving precursor salt of diammine dinitritoplatinum(II) (Pt(NH3)2(NO2)2) in deionized water at 60-80 degrees C to form precursor salt solution, adding Nafion (RTM: sulfonated tetrafluoroethylene based fluoropolymer-copolymer) in ethylene glycol/water mixture and functional carbon carrier, stirring and adding precursor salt solution; adding functional carbon carrier in ethylene glycol/water, stirring, adding precursor salt solution, stirring, adding Nafion (RTM: sulfonated tetrafluoroethylene based fluoropolymer-copolymer) and mixing; or adding ethylene glycol/water mixture to Nafion (RTM: sulfonated tetrafluoroethylene based fluoropolymer-copolymer), stirring, adding precursor salt solution, stirring, adding functional carbon carrier and stirring, where weight ratio of Pt to C is 2:1-1:98 and Pt to Nafion (RTM: sulfonated tetrafluoroethylene based fluoropolymer-copolymer) dry resin is 20:1-1:70, reacting at 60-80 degrees C, stirring for 12-72 hours, washing with deionized water and filtering to obtain solid material, dispersing with deionized water, repeating the step for 3-10 times to remove unreacted precursor salt and drying at 60-90 degrees C for 3-6 hours; and grinding precursor, placing in container with hydrogen atmosphere, where temperature rate is 1-10 degrees C/minute, temperature is 150-300 degrees C and time is 1-3 hours.