Abstract: As the global energy structure accelerates the transformation to low-carbon energy, hydrogen energy, as an important carrier of building a multi energy supply system dominated by clean energy, is considered to be an ideal interconnection medium to promote the clean and efficient use of traditional fossil energy and support the large-scale development of renewable energy. From the perspective of the 14 th five year plan, this paper analyzes the significance and necessity of the development of hydrogen energy, sorts out and interprets the 14 th five year plan of China, summarizes the mainstream application fields of hydrogen energy in China, summarizes each application system, and provides suggestions for the development of hydrogen energy application technology in China, It has guiding significance for the formation of hydrogen energy ecology and complete hydrogen energy application system in China.