NOVELTY - Preparation of oxygen-reduced non-noble metal catalyst comprises preparing phenylamine or pyrrole intercalation layered compound, processing inter-layer polymerization of phenylamine or pyrrole, dispersing layered compound inter-layer nitrogen mixed graphene in ethanol, stirring for 3-8 hours with ultrasound, forming layered compound inter-layer nitrogen mixed graphene suspension, adding hydrofluoric acid in layered compound inter-layer nitrogen mixed graphene suspension slowly, washing, drying at 60 degrees C for 24 hours, grinding and obtaining nitrogen mixed graphene catalyst.    USE - Method of preparation of oxygen-reduced non-noble metal catalyst (claimed) used in fuel cell on electric automobile, spacecrafts, portable type electronic equipments, e.g. vidicon, notebook computer and electronic toys.    ADVANTAGE - The method is simple and easy to operate, and low cost; and the catalyst prepared has good oxygen-reduced catalytic activity and stability, which can be used in fuel cell using proton exchange membrane as electrolyte.    DETAILED DESCRIPTION - Preparation of oxygen-reduced non-noble metal catalyst comprises:    (A) weighing layered compound and phenylamine or pyrrole at ratio of 1:0.1-4, dispersing layered compound in deionized water, stirring for 3-8 hours with ultrasound and forming layered compound suspension with 0.01-0.1 g/ml of mass concentration, controlling volume of ethanol, acetone or acetonitrile at volume ratio of layered compound and ethanol, acetone or acetonitrile at 1:0.3-1, dissolving phenylamine or pyrrole in ethanol, acetone or acetonitrile, and adding layered compound suspension, stirring at 10-60 degrees C for 10-40 hours, and forming phenylamine or pyrrole intercalation layered compound;    (B) controlling volume of sulfuric acid or hydrochloric acid to 1:0.1-0.5 of volume ratio of phenylamine or pyrrole intercalation layered suspension and sulfuric acid or hydrochloric acid, with concentration of sulfuric acid or hydrochloric acid of 0.5-1.5 mol/l, weighing oxidizing agent to mass ratio 1:0.5-2 of phenylamine or pyrrole and oxidizing agent, dissolving in deionized water to form oxidizing agent solution with 0.1-1 g/ml mass concentration, adding sulfuric acid or hydrochloric acid in phenylamine or pyrrole intercalation layered suspension, stirring for 1-3 hours, adding oxidizing agent solution in suspension with 0.1-1 ml/minute, stirring at 0-10 degrees C for 10-30 hours, filtering by vacuum, washing with deionized water for three times and washing with absolute ethyl alcohol for three times, drying at 60 degrees C for 24 hours, grinding and obtaining layered compound interlayer polyaniline or polypyrrole;    (C) putting layered compound inter-layer polyaniline or polypyrrole in tube furnace, feeding inert gases with 50-200 ml/minute of flowing speed for 0.5-1 hour, maintaining flowing speed of inert gases, heating at 6-20 degrees C/minute, heating tube furnace at 120-180 degrees C for 1-4 hours, heating at 700-1000 degrees C for 1-4 hours, cooling to room temperature, grinding, and obtaining layered compound inter-layer nitrogen mixed graphene; and    (D) weighing hydrofluoric acid at mass ratio of 1:2 of layered compound and hydrofluoric acid, with concentration of hydrofluoric acid at 40%, dispersing layered compound inter-layer nitrogen mixed graphene in ethanol, stirring for 3-8 hours with ultrasound, forming layered compound inter-layer nitrogen mixed graphene suspension with 0.1-1 g/ml concentration, adding hydrofluoric acid in layered compound inter-layer nitrogen mixed graphene suspension slowly, stirring for 10-20 hours with ultrasound, filtering, washing with deionized water for three times and washing with absolute ethyl alcohol for three times, drying at 60 degrees C for 24 hours, grinding and obtaining nitrogen mixed graphene catalyst.