The electrochemical methanol oxidation reaction (MOR) is of paramount importance for direct methanol fuel cell (DMFC) application, where efficient catalysts are required to facilitate the complicated multi-ple charge transfer process. The catalyst support not only determines the dispersion status of the cata-lysts particles, but also exerts great influence on the electronic structure of the catalysts, thereby alter-ing its intrinsic activity. Herein, we demonstrated that nitrogen atoms, assisted by the pre-treatment of carbon matrix with oxidants, can be easily doped into carbon nanotubes at low temperature. The ob-tained nitrogen-doped carbon nanotubes can effectively improve the dispersion of the supported plat-inum nanoparticles and facilitate the MOR by modifying the electronic structure of platinum atoms, through catalyst-support interaction.