The legal regulation of big data is a complex task. Promoting innovative development not only meets the interests of the individual, society and the state, but also creates new problems related to measures to protect personal information and privacy risks. The development of the concept of legal regulation of databases is complicated by the lack of a common terminology, different interpretations of the basic concepts. This study focuses on revealing trends in the development of the big-data-oriented digital economy. The authors have also examined the problems that slow this development down. The method of comparative analysis has been used to examine the main digital economy development drivers related to big data. The analysis of the categorical concepts of "digital economy" and "big data" has been carried out through the comparative legal method, empirical and theoretical methods as well as the method of sociological research. Specialists who develop the digital environment play an important role in reinforcing the digitalization of the economy. Therefore, investments in the training of competent specialists are of great importance. The second task is to develop technologies for digital transformation. The third task is to increase the availability of big data analysis tools for small and medium-sized businesses. The fourth task is to formulate some adequate norms for the legal regulation of big data. Sociological studies have shown a big interest of the public to the problems of analytics and big data legal regulation, compliance with information security requirements in this area.