Catalysts can change the reaction rate in chemical reactions. In the process of electrolyzing water, catalysts play a crucial role in reducing energy consumption and improving electrolysis efficiency. The research on catalysts for electrolyzing water has important scientific significance and application value. In addition to precious metal catalysts, there are also some other non precious metal catalysts that have the advantages of low cost and good stability, which can reduce the cost of electrolyzing water and promote the development of water electrolysis technology. The research and development of catalysts will promote the development of electrolytic water technology and provide important support for the conversion and storage of clean energy.