Abstract: Hydrogen energy is considered as one of promising clean energy and has become an important direction for energy revolution technology under the "dual carbon" goal in China. Fuel cell vehicles are the largest application field of hydrogen energy, and the Beijing-Tianjin-Hebei region, Yangtze River Delta and Pearl River Delta are main regions of developing fuel cell vehicles industry in China. The hydrogen industry in other regions was also briefly introduced. In this paper, the automotive hydrogen industry chain involving the production, storage, transportation and refueling of hydrogen in the three regions was studied. For the three regions, the characteristics and state of hydrogen production, storage/transportation and refueling with various enterprises were summarized and the future development trend of hydrogen energy industry was also predicted. Finally, methods to improve the economy of hydrogen energy industry were proposed.