NOVELTY - A direct alcohol fuel battery catalyst stability and conductivity strengthening method involves doping transition metal in metal oxide nano-tube, nitrogen source and carbon source, and adding mixed solution of water and organic solvent to obtain a mixture. The mixture is allowed for ultrasonic dispersion to obtain mixed slurry. The mixed slurry is kept at 40-90 degrees C to obtain solid powder. The solid powder is placed in a tubular furnace. Nitrogen is mixed with a composite catalyst carrier. Platinum composite catalyst is supported by a micro wave aiding multivariant method.    USE - Method for strengthening stability and conductivity of a direct alcohol fuel battery catalyst.    DETAILED DESCRIPTION - A direct alcohol fuel battery catalyst stability and conductivity strengthening method involves doping 1-30% transition metal in metal oxide nano-tube, 60-40% nitrogen source and carbon source, and adding mixed solution of water and organic solvent to obtain a mixture. The mixture is allowed for ultrasonic dispersion for 1-3 hours to obtain mixed slurry. The mixed slurry is kept at 40-90 degrees C to obtain solid powder. The solid powder is placed in a tubular furnace, heated at 300-800 degrees C for 0.5-3 hours under protection of the inert gases. Nitrogen is mixed with a composite catalyst carrier compounded by in situ carburization. A platinum composite catalyst is supported by a micro wave aiding multivariant method, where the metal oxide is cerium oxide, titanium oxide, zinc oxide, nickel oxide, ferric oxide, vanadium pentoxide, manganese dioxide and tungsten trioxide, the carbon source is benzylamine, acetonitrile, or pyridine, the ionic liquid is imidazole, pyridine, piperidine, morpholine, or quaternary ammonium, the organic solvent is isopropanol, ethanol, ethylene glycol, glycerol, butanediol, butantriol or tetramethyl ethylene glycol, the platinum-based catalyst is supported platinum single metal catalyst, supported platinum-N binary alloy catalyst or supported platinum-N complex alloy catalyst, supported platinum-N binary alloy catalyst, supported platinum-N hollow spherical, supported platinum base core-shell Pt-N catalyst or supported platinum base core-shell catalyst.