On the afternoon of January 11, during the third session of the 13th session of the Beijing Municipal Political Consultative Conference, Qi Xiangdong, a member of the Beijing Municipal Political Consultative Conference, said in an interview with reporters that the current application of blockchain technology has been extended to digital finance, the Internet of Things, intelligent manufacturing, supply chain management, In many fields such as digital asset transactions, these scenarios have extremely high security requirements. However, over time, the security issues of the blockchain have become increasingly prominent. Qi Xiangdong believes that in the implementation of the "supervisory sandbox" pilot, Beijing must learn from international experience and try it out first, strengthen benign communication and interaction with participating companies, and provide a model template for China to build a complete regulatory sandbox system . Qi Xiangdong also said that Beijing, as a financial center where regulators gather, vigorously develops financial technology is an important support and component of Beijing's construction of a science and technology innovation center. It is suggested that the Municipal Party Committee and Municipal Government and related management institutions should strengthen the guidance and standardization of blockchain technology. At the same time, in the construction of the blockchain, it is also necessary to strengthen the close tracking of security "three synchronizations", so that the blockchain technology is under construction. Network power, the development of digital economy, and the promotion of economic and social development will play a greater role.