A　lambda-MnO2　supported　Pt　nanocatalyst　(5　wt.%　Pt/lambda-MnO2)　was　synthesized　using　facile　approach,　X-ray　diffraction　(XRD),　X-ray　photoelectron　spectroscopy　(XPS),　scanning　electronic　microscope　(SEM),　transmission　electron　microscopy　(TEM),　and　energy　disperse　spectroscopy　(EDS)　were　used　for　catalyst　structure　and　morphology　characterization,　which　showed　that　the　metallic　Pt　particles　were　attached　on　a　lambda-MnO2　Surface　through　the　interaction　between　Pt　and　lambda-MnO2.　Cyclic　voltammetry　(CV)　was　used　to　test　the　catalytic　activity　of　Pt/lambda-MnO2　toward　methanol　oxidation,　which　showed　that　Pt/lambda-MnO2　catalyst　has　much　higher　catalytic　activity　than　baseline　Pt/C　catalyst.