Abstract: in response to the difficulties and challenges of personal information protection in the context of the era of big data, the global personal information protection legislation process has been rapidly advancing. With the rapid development of information technology, the drive of economic interests, and the combination of institutional internal factors and objective external factors, the phenomenon of infringement of citizens’personal information has become increasingly prominent. The situation of personal information protection in China is grave. This article starts from four aspects of legislation, government, business, and individuals, and suggests that China’s personal information protection system be involved in order to promote and improve personal information protection in China.

Key words: big data, personal information protection, system design