Abstract: With the rapid popularization of information services and the continuous innovation of Internet business model, free social software has entered all aspects of user life. However, when users enjoy all kinds of free social software services, the compulsory collection and improper handling of users’ personal privacy information are common concerns of users. Protecting the personal information and privacy of social software users, so that users’ personal information and privacy data can no longer "run naked", cannot be separated from improving the self-restraint of users' improper network behavior, strengthening the self-discipline of social software operators, and improving the quality of government regulation. Therefore, under the framework of the rule of law, it is extremely important to construct a multi-subject cooperation mechanism to protect personal privacy, effectively prevent and resist torts, and actively explore and construct legal regulations to prevent and control personal privacy crisis.