With the developments of regulations and policies in the field of mobile Intrnet，significant achievements can be seen in various areas，such as the protection of personal information and regulation of network industry. Integrating weighted laws，policies with typical enforcements and regulatory case，this paper presents the governance characteristics of strengthening the supervision of network information ecological and network industry，focusing on the protection of data security and personal information in 2021. Moreover，it looks forward to the situation that regulations and policies of mobile internet will continue to play a role in the regulation of digital economy，the regulation of anti-monopoly and anti-unfair competition and the protection of intellectual property rights. Multiple co-governance will become a new trend of governance.