[Li Dongrong, former vice governor of the people's Bank of China: research and development and application of in-depth mining data technology in financial services and financial supervision]. At the Fifth Guangdong-Hong Kong-Macau Greater Bay Area Financial Development Forum, Li Dongrong, former vice governor of the people's Bank of China and the first president of the China Mutual Fund Association, said that as an important blood of the national economy, the financial industry should continue to promote financial integration in the Dawan area. Continue to open wider to the outside world Vigorously promote the interconnection of data elements, promote new infrastructure construction in the field of digital finance, strengthen inter-regional financial regulatory cooperation, and improve the efficiency and level of financial supervision. In order to standardize and facilitate the flow of data elements, Li Dongrong believes that there are mainly three aspects of basic work: first, it is necessary to do a good job in the construction of laws and regulations related to data flow. Second, the research and application of deep mining data technology in financial services and financial supervision. Third, proceed from the needs of the industry, plan and build the infrastructure of the financial industry from the top-level design level, speed up the construction of the financial data center and the layout optimization of the cultivation center, and build a green, safe and efficient financial computing infrastructure.