TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preparation: The preparation method of the electric catalyst for cathode of proton exchange membrane fuel battery, comprises: (a) adding the metallic soluble precursor and phosphate to the solvent in terms of molar ratio of transition metal to element of 0.5-2, uniformly mixing; where the mass ratio of the solvent in the total solution is 5-90%; (b) dissolving the pH value regulating agent and surfactant to the solvent, uniformly mixing with the mixed solution obtained in (a); where the mass ratio of solvent in the total solution is 20-90%; the mass ratio of pH value regulating agent to the transition metal is 70-80; and the mass ratio of the surfactant to the transition metallic element is 2-4; (c) uniformly mixing the carrier with the mixed solution obtained in (b), and dispersing the active ingredient to the surface of the carrier; where the mass ratio of the carrier to the transition metal is 2-195; (d) aging and separating the mixture obtained in (c) and drying for 3-24 hours at 80-120 degrees C; and (e) baking the dried mixture for 1-6 hours at 300-700 degrees C under the hydrogen gas (H2)/inert gas condition to obtain the product. Preferred Components: The active ingredient contains one or one more metallic elements of ruthenium (Ru), molybdenum (Mo), tungsten (W), zirconium (Zr), chromium (Cr), vanadium (V), tantalum (Ta), iron (Fe), cobalt (Co), nickel (Ni), and titanium (Ti). The phosphorus oxide of one or one more metallic elements in IVB, VB, VIB, VIII groups is phosphorus oxide of Ru, Mo, W, Zr, Cr, V, Ta, Fe, Co, Ni, and Ti, having structural formula of MPyOz. The carrier is active carbon, conductive carbon black, graphite carbon, carbon nanotube, or carbon nanofiber. The phosphate is ammonium phosphate, ammonium biphosphate, or diammonium phosphate. The metallic soluble precursor is metal nitrate, oxalate, or acetate.M=transition metal;y= greater than or equal to 0.5 but less than or equal to 2; andz= greater than or equal to 2.25 but less than or equal to 6.Preferred Composition: The amount of the active ingredient in the catalyst is 0.5-20 wt.%.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The pH value regulating agent is dimethyl acetamide, dimethyl formylamine, urea, sodium hydroxide, potassium hydroxide, sodium bicarbonate, or ammonia. The surfactant is mersolate. The solvent is water, 2-8 carbon atom monohydric alcohol, 2-8 carbon atom dihydric alcohol, or 2-8 carbon atom trihydric alcohol.