NOVELTY - An anode electrocatalyst comprises nanogold particles and porous carbon carrier. The nanogold particles are highly dispersed on surface of carbon carrier that is passivated and treated with surface oxidation. The nanogold particles are present at loading amount of 5-30%, and has particle diameter of 2-6 mm. The porous carbon carrier has specific surface area of 100-2000 m2/g.    USE - Anode electrocatalyst for direct borohydride fuel cell (claimed).    ADVANTAGE - The electrocatalyst has excellent borohydride electric oxidation catalytic activity, and simple preparation such that it can be easily mass produced without high temperature calcinations. The gold particles are distributed uniformly on the surface of carbon carrier.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method of preparing anode electrocatalyst, comprising:    (A) adding high molecular weight stabilizer in chloroauric acid aqueous solution, agitating for 10-30 minutes to mix uniformly, dropping sodium borohydride aqueous solution prepared freshly at room temperature while stirring magnetically, and agitating for 15-30 minutes continuously after finishing dropping to form stable claret red aerosol;    (B) passivating and performing surface oxidation treatment on porous carbon carrier by processing the carbon carrier in concentrated hydrochloric acid solution, heating and refluxing for 2-10 hours in oil bath at 120 degrees C, filtering and washing until there is no chloride ion (Cl-) in solution, and adding it to oxidant solution for processing, heating and refluxing for 1-12 hours in oil bath at 120 degrees C, filtering and washing until the solution is neutral, and drying in vacuum at 110 degrees C; and    (C) preparing anode electrocatalyst by ultrasonically dispersing the carbon carrier in deionized water, placing it in a round bottom flask, adding the aerosol, agitating and adsorbing for 5-48 hours, filtering and washing until there is no Cl- in solution and the pH of solution is neutral, drying the filter mass for 20 hours in vacuum at 110 degrees C, and grinding into powder.