TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Catalyst: In the Ni base catalyst in positive of a direct hydroboron fuel cell, the active components of the catalyst are constituted by Ni and one or more of the metal elements in ruthenium (Ru), rhodium (Rh), palladium (Pd), osmium (Os), iridium (Ir), platinum (Pt), gold (Au) and silver (Ag). The atom ratio of the Ni in the catalyst and other metal active components is 80 to 10:1. The percentage composition of the active components in the catalyst is 10% to 60%. The catalyst can be prepared by: (a) adding the catalyst carriers in the solvent, ultrasonic stirring, evenly mixing to obtain sizing A; (b) dissolving the soluble precursors of the active components of the catalyst in the solvent, evenly mixing to obtain solution B; mixing the sizing A and the solution B to obtain the sizing C; (c) in the stirring conditions, adding ammonia, alkali metal hydroxide solution, alkali carbonate solution, alkali metal supercarbonate solution, alkaline-earth metal hydroxide solution, alkaline-earth metal carbonate solution and/or alkaline-earth metal supercarbonate solution into the sizing C; adjusting PH value of the mixed solution to 9 to 13; obtaining sizing D; (d) putting the sizing D in the water bath with the temperature of 0 to 90 degrees C; in the stirring conditions, adding excess reducer in the sizing D to reduce for 0.5 to 2 hours; obtaining sizing E; and (e) washing the sizing E with water, ethanol, isopropanol or the mixed solution of them; vacuum drying in the temperature of 60 to 100 degrees C to obtain the catalyst. The soluble precursors of the active components are one or more of the active components in the nitrate, sulfate, acetate, halide, dinitroso-diamine salt, acetylacetonatide, or macrocyclic complex porphyrin, phthalocyanine and the polymer; the solvent is one or more of water, 1-8C monohydric, 2-8C dihedral or 3-8C trihydric. The reducer is one or more of hydroboron, hydrazine, hydrogen, hydride, methanoic acid, sodium formate and formaldehyde. The carrier is one or more of carbon soot, graphitic carbon, carbon nano tube, carboform, carbosphere and carbon gel.