Hydrogen is considered to be a clean and efficient energy compared with the traditional fossil energy with a great potential for large-scale development of renewable energy. Hydrogen production by electrolysis means that water molecules are dissociated to form oxygen and hydrogen under the action of direct current, which are separated from the anode and cathode of the electrolytic cell respectively. Different from alkaline hydroelectrolysis , hydrogen production by PEM electrolysis uses perfluorosulfonic acid proton exchange membrane with good chemical stability, proton conductivity and gas separation as a solid electrolyte to replace asbestos membrane, which can effectively prevent electron transfer and improve the safety of electrolytic cell. Shaanxi Kaida Chemical Co., Ltd., with mature and large-scale preparation technology, specializes in the development and production of precious metal catalysts, and provides key precious metal catalysts for a number of domestic professional manufacturers of fuel cells and PEM electrolysis. The precious metal catalyst with high activity, high stability and long life was produced by means of carrier screening, changing the structure and performance of the carrier, the dispersion of the active metal and the improvement of the preparation conditions.