College students pay more attention to and more participate in social hot events with the development of network and network media. Social phenomena and problems reflected by network hot events play significant guidance role for college students stepping into society soon and make important influence on their social mentality development. Ideological and political work in university should focus on guiding college students to correctly use network technology and promote information analysis ability, lead college students have correct opinion on social problems in social transition, and continuously improve development of ideological and political education modernization. Meanwhile, government should guide network media to purify cyberspace and provide healthy network environment for college students.