With the global shift towards sustainable energy sources, hydrogen has emerged as a key player in the future of clean energy. The International Energy Agency predicts a substantial growth in the global hydrogen energy market by 2030, with applications in various sectors including fuel cell vehicles, industrial production, and aerospace. While current methods of hydrogen production often rely on fossil fuels, electrolytic water technology offers a promising path towards green hydrogen energy with minimal environmental impact. Advances in catalyst technology, such as the Ir/Ce embedded catalyst developed by Fudan University, have enhanced the efficiency and reduced the cost of PEM water electrolysis. However, challenges persist in the non-spontaneous nature of water electrolysis, necessitating continuous external energy and the need for stable, low-cost catalysts. Developing non-precious metal catalysts with high performance and stability is crucial for making electrolytic hydrogen production more competitive against traditional fossil fuel-based methods. Overall, the research and advancements in hydrogen production through water electrolysis hold significant promise for a sustainable energy future.