Abstract:University students' mental disease has become an important cause that results in campus vicious accidents. Paying much attention to students' mental health and effectively responding to the mental disease have become the important content of university education, management, especially the crisis-prevention and intervention. Through a brief introduction of three kinds of mental disease which are common in students and are apt to trigger off vicious accidents, this paper analyzes some possibilities that such diseases may trigger off vicious accidents, and puts forward several intervenient principles and policies.