NOVELTY - Preparing binary alloy nano-wire structured direct alcohol fuel cell catalyst, comprises dissolving cationic surfactant and carrier in polyol, acetone and other polar solvents, processing by ultrasonication and mechanical stirring to obtain a homogeneous mixture, where the carrier is XC-72 carbon black, carbon nanotubes, graphite, mesoporous carbon or carbon fiber, adding metal precursor salt and coordination compound to the mixture to form a mixed slurry, microwave heating the mixed slurry at 80-160 degrees C until the reaction is complete, filtering, washing and drying to obtain the catalyst.    USE - The method is useful for preparing binary alloy nano-wire structured direct alcohol fuel cell catalyst (claimed).    ADVANTAGE - The method utilizes different polar solvents to form bicontinuous micelles, and surfactants and metal precursor salt of different charges to form electrostatic self-assembly catalyst with different adsorption layers. The catalyst is economical and conducive to alcohol fuel delivery and has strong anti-toxic resistance and high activity and stability.    DETAILED DESCRIPTION - Preparing binary alloy nano-wire structured direct alcohol fuel cell catalyst, comprises: (i) dissolving cationic surfactant and carrier in polyol, acetone and other polar solvents, processing by ultrasonication and mechanical stirring to obtain a homogeneous mixture, where the concentration of the cationic surfactant in the mixture is 0.5-3 times the critical micelle concentration, the carrier is XC-72 carbon black, carbon nanotubes, graphite, mesoporous carbon or carbon fiber and the cationic surfactant is dodecyl dimethyl tertiary amine acetate, hexadecyl trimethyl ammonium bromide or heterocyclic compounds, preferably imidazoline, moroxydine or triazine derivative; (ii) sequentially adding a metal precursor salt and a coordination compound to the mixture to form a mixed slurry, where the total load of metal element in the metal precursor salt and the complex is 10-60%, the metal precursor salt is palladium(II) acetate, palladium(II) chloride, platinum(IV) chloride, gold(III) chloride, silver nitrate, iridium(III) chloride or rhodium(III) chloride, the coordination compound is sodium hexachloroplatinate, sodium palladium tetrachloride, potassium hexachloroplatinate, dihydrogen tetrachloropalladate, chloroauric acid, chloroiridic acid, hexachloroplatinic acid, potassium tetrachloropalladate, potassium tetrachloroaurate, sodium tetrachloroaurate, sodium hexachloroiridate or potassium hexachloroiridate, the atomic ratio of metal elements in the metal precursor salt and the coordination compound is 1:(0.2-5), and different metal elements are present in the metal precursor salt and the coordination compound; and (iii) microwave heating the obtained mixed slurry at 80-160 degrees C until the reaction is complete, and then filtering, washing and drying to obtain the catalyst.