This report provides a detailed introduction to the development of China’s nuclear energy industry in 2020 from eight aspects，and combines the current domestic and international situations to analyze and prospect the development of China’s nuclear energy industry. In 2020，China made new progress in scientific and technological innovation in the field of nuclear energy. The scale of commercial nuclear power installations and nuclear power generation grew steadily，the scale of nuclear power under construction remain the world leader，the production and operation of the nuclear fuel cycle industry remain stable，the capability of nuclear power equipment’s self-reliance and localization was further improved，the modernization of the nuclear energy industry governance system and management capabilities are promoted，the strength of the nuclear energy talent team was strengthened，and fruitful results in the international cooperation in the peaceful use of nuclear energy were achieved. In the future，nuclear energy will play an indispensable role in achieving the goal of carbon peak and carbon neutralization in China. Scientific and technological innovation of nuclear energy will further enhance the self-reliance ability of nuclear energy industry，the supply chain of nuclear energy industry will be more balanced and comprehensive developed，the application of nuclear technology will play a greater potential in the fight against the epidemic and the development of the national economy and society，and the social environment for promoting the development of nuclear energy will be better and better.