In the practice of the U.S. and the European Union，there are some limitations of private legal protection of personal information，therefore，government supervision protection plays an important role. The introduction of the Chinese 2017 “Cyber Security Law” establishes the core legal status of the personal information and internet security，but the government supervision mechanism does need to be further implemented. Since 2017，China has also introduced several government supervision rules，and used “administrative talk” as one of the important implementation means. In the aspect of government supervision，the U.S. Federal Trade Commission（FTC）has rich experience，which we need to study from. China should promote building the personal information protection mechanism，improve the legal system，and strengthen the joint protection between different departments.