Abstract: In order to roundly analyse the vulnerability in the Social Network, and provide the solutions and advices accordingly, the vulnerabilities in the Social Network are analyzed deeply. In the process of analyzing the vulnerabilities of the Social Network, Network security, information security, brand crisis, social life is discussed. The vulnerabilities and problems are extracted during the development of the Social Network, the security solutions and advices are presented to assure the advance of our nation’s Social Network and information security.