The main function of the Big Data Bureau is to draw up a big data standard system and evaluation system according to the requirements of the country and the province, and organize the implementation of big data collection, management, opening, trading, application and other related work. Coordinate and promote the open application of big data in various social and economic fields. Coordinate the overall promotion of smart city construction. To implement the national and provincial policies, laws, regulations, standards and planning schemes on e-government, formulate the city's e-government development plan, technical standards and annual plans and organize their implementation. Improve the city's population, legal persons, spatial geography, macroeconomics and other basic database construction, and promote the construction and application of the city's inter-departmental data exchange platform.