Rapid development of the Internet and popularization of online education gradually empower young college students with the status of subjectivity over the network cluster behavior. Therefore, it is urgent for colleges to prevent and control the virtual community risk and solve the existing problems such as lagging behind, passivity and emergency. As one of the main forces of value guidance and ideological and political education in colleges, the Party and League organizations need to fill the organizational gaps in response to the network cluster behavior of college students. In the process of risk control of college students’network cluster behavior, colleges should give full play to grassroots Party and League organizations on the basis of accurately grasping the connotation, characteristics and causes of risk. As a result, substantive Party and League organizations will fully enter the Internet position through rational construction, from different dimensions of network environment, subject mentality and system management, through rational construction so as to effectively guide and regulate college students’ network cluster behavior.