SPE water electrolysis for hydrogen production is considered to be the most promising technology for hydrogen production from water electrolysis due to its small size, high efficiency, high purity of generated hydrogen, and long-term operation at high current density. As the core of this technology, SPE water electrolysis catalyst directly determines the various aspects of performance of hydrogen production from water electrolysis. The SPE water electrolysis catalyst prepared by our company based on the improved CCM process can improve the performance of water electrolysis and help the development of the green hydrogen industry.