On January 1st, the overseas edition of the People's Daily published "2019 Five Key Words in China's Internet." The article stated that the second key word was "blockchain". The article states that 2019 is the year when the blockchain will usher in a turnaround. In October 2019, General Secretary Xi Jinping stressed during the eighteenth collective study of the Political Bureau of the Central Committee that blockchain should be used as an important breakthrough in independent innovation of core technologies, the main direction of attack should be clarified, investment should be increased, and a number of key cores should be overcome. Technology to accelerate the development of blockchain technology and industrial innovation. This spring breeze has caused the blockchain to attract much attention from all walks of life. According to incomplete statistics, as of early December 2019, a total of more than 40 blockchain-related guidelines were issued at the national level, covering food safety, trade, transportation, and government affairs management.