On January 3, the People's Daily Online pointed out that in 2019, Xi Jinping kept refreshing the "busy index", conducting investigations and surveys in various places in the country, and measuring the public sentiment with his footsteps. He has made many overseas visits and contributed to China's wisdom. "Dream chaser", "I will live without me, live up to the people", "Struggle spirit", "Blockchain" … In 2019, Xi Jinping's parallels, words and thoughts, brought a series of fires hot word. "Blockchain" is one of the hot words, and its background is: On the afternoon of October 24th, the Political Bureau of the Central Committee of the Communist Party of China conducted the eighteenth collective study on the current status and trends of blockchain technology development. The General Secretary of the CPC Central Committee Xi Jinping emphasized during the study that the integrated application of blockchain technology played an important role in new technological innovation and industrial transformation. We must regard blockchain as an important breakthrough in independent innovation of core technologies, clarify the main attack direction, increase investment, focus on overcoming a number of key core technologies, and accelerate the development of blockchain technology and industrial innovation.