NOVELTY - Loading nitride into graphite nanosheet, comprises adding expandable graphite into high temperature furnace, heat treating, cooling to obtain expanded graphite, adding tungsten source, molybdenum source or vanadium source and surfactant into solvent to obtain uniformly mixed precursor, dripping precursor to inject into expanded graphite, placing crucible containing reaction precursor in control pulse microwave oven, providing with pulse opening time and closing time, performing nitriding treatment of oxide/graphite nanosheet complex and heating to obtain nitride/graphite nanosheet complex.    USE - The nitride loaded graphite nanosheet is useful for carrying platinum or palladium nanoparticles, and for fuel cell cathode or anode electro-catalysis reaction (claimed).    ADVANTAGE - The method is simple, has mild reaction condition, ensures small diameter of obtained nitride particle and their uniform distribution on the graphite surface and the interlayer, and utilizes titanium, molybdenum and vanadium based noble metals, which can be used for low platinum fuel cell.    DETAILED DESCRIPTION - Loading nitride into graphite nanosheet, comprises (a) weighing (in parts by wt.) tungsten source, molybdenum source or vanadium source (0.3-6), expandable graphite (1), surfactant (0.05-0.6) and solvent (50-100); (b) adding expandable graphite into high temperature furnace, continuously filling nitrogen or argon gas as protective gas, increasing the temperature to 700-1100 degrees C, heat treating for 1-10 minutes, and then cooling to room temperature to obtain the expanded graphite; (c) adding the weighed tungsten source, molybdenum source or vanadium source and surfactant into the solvent, carrying out ultrasonic treatment at an ultrasonic power of 100 W for 15 minutes to obtain the uniformly mixed precursor; (d) placing the expanded graphite in a vacuum device under a vacuum degree of 0 to -0.05 MPa, dripping the precursor at a dripping speed of 3-5 ml/minutes to inject into expanded graphite, carrying out ultrasonic treatment at ultrasonic power of 100 W for 10 minutes, and stirring at 60-120 degrees C under rotation speed of 400-2200 rotations/minute for 30 minutes to 24 hours, to evaporate the solvent to obtain the reaction precursor; (v) placing the reaction precursor in a crucible, placing the crucible in a high temperature-control pulse microwave oven at a output power of 2000 W, frequency of 300MHz to 300 GHz and the wave length of 0.1-100 cm, providing with pulse opening time of 5-30 s, the pulse closing time of 5-30 s, circulating for 5-15 times to obtain oxide/graphite nanosheet complex, and (vi) placing oxide/graphite nanosheet complex in a tubular furnace, performing nitriding treatment by passing a gas at a speed of 110-180 ml/minutes, and heating from room temperature to 400-700 degrees C at speed of 5 degrees C/minute, from 400-700 degrees C to 650-900 degrees C at speed of 1 degrees C/minute, and then constant temperature for 1-3 hours to obtain the nitride/graphite nanosheet complex. The tungsten source is ammonium metatungstate, ammonium heptatungstate, tungsten hexachloride, tungsten hexacarbonyl, hexatungstic acid, phosphotungstic acid, decatungstic acid, sodium tungstate, sodium hexatungstate, sodiumtungstophosphate, sodium decatungstate, potassium hexatungstate, potassium phosphotungstate or potassium tungstate of formula (K4W10O32). The molybdenum source is ammonium molybdenumoxide, ammonium tetrmolybdate, ammonium heptamolybdate, ammonium octamolybdate, hexacarbonylmolybdenum, molybdophosphoric acid, molybdenum(V) chloride or molybdic acid. The vanadium source is ammonium metavanadate, vanadium carbonyl, vanadium tetrachloride, vanadium trichloride, vanadium(II) chloride or vanadic acid. The solvent is water, ethanol, ethylene glycol or dimethylformamide. The surfactant is cetyl trimethyl ammonium bromide, polyethylene glycol, ammonium citrate, polyoxyethylene-polyoxypropylene-polyoxyethylene, polyvinyl alcohol, cetyl dimethyl benzyl ammonium bromide, cetanol polyoxyethylene ether dimethyl octyl ammonium chloride (sic), and lauryl alcohol polyethenoxy ether dimethyl methyl ammonium chloride (sic). In the nitriding treatment, the gas is the mixed gas of ammonia or hydrogen and nitrogen, and hydrogen and nitrogen, where the mol ratio of hydrogen and nitrogen in the mixed gas is 5: 1.