Hydrogen energy,as an efficient and clean energy and ideal energy conversion medium,can be widely used in industry,transportation,power and other fields to promote the green-oriented transition and innovation development of energy.This article analyzes the overall development trends of hydrogen energy technology from the perspective of patent analysis,and provides a reference for the further patent research and industrial development in the field of hydrogen energy.The global technology innovation of hydrogen energy is continuously active,in which China plays an increasingly important role,but the top patent applicants are obviously centralized in China.Furthermore,this article compares the hydrogen energy patents from the aspects of technology distribution,revealed technology comparative advantage and relative growth rate percent.On these basis,the study suggests that China should accelerate the layout of the entire hydrogen energy industry chain,strengthen the dominant position of enterprises in scientific and technological innovation and scale up the development of hydrogen energy industry.