On December 26, 2019, Jiayuguan City, Gansu Province held a special lecture on blockchain technology and applications. The Standing Committee of the Municipal Party Committee and Executive Deputy Mayor Wang Yi said that all relevant departments in the city must deeply understand the significance of promoting the development and application of blockchain technology, further deepen the study of blockchain-related knowledge, and focus on promoting the blockchain and the real economy. Deep integration, and practically solve the problems of SME loan financing difficulties, bank risk control difficulties, department supervision and other problems. It is necessary to use blockchain technology to explore innovations in the digital economy model, and provide power for creating a convenient, efficient, fair competition, stable and transparent business environment. To explore the use of "blockchain +" in education, employment, pension, medical health, food safety, social assistance and other areas of people's livelihood, promote the combination of the underlying technical services of the blockchain and the construction of new smart cities, and improve the intelligence of urban management , Precision level. It is necessary to explore the use of the blockchain data sharing model, promote the collaborative processing of business, deepen the "run once" reform, and bring a better government service experience to the people.