Abstract: Data management is a problem that arises with the development of technology. In the designing of rules, it is necessary to consider the factors of various aspects and enable multiple subjects to participate. The digital economy is leading the new momentum of China's economy, data ownership, personal information protection and other issues have brought challenges to data management. The problem of data ownership involves the basic civil rights system, and it will take time to polish it. The problem of personal information protection has experienced the vicissitude of several periods, the connotation and the essence have changed correspondingly. A whole design should be planned under the time background to solve the proposition of data management, to respond to balance the relationship between security and development, to protect information security,and to promote industrial development and protection of rights and interests of the user’srequest.

Key words: data management, personal information protection, digital economy, data ownership