The research aims to explore the relationship of senior high school students' Campus cold violence and Emotion regulation and Mental Health.A school from the city of Beijing and a school from its suburb were used as samples for this research.A total of 320 students from the first level and the second level in a senior high school accomplished the Chinese Version of Delaware Bullying Victimization Scale-student，Emotion Regulation Scale student and Mental Health Scale-student.We got 299 valid data finally.Campus cold violence is related to their living environment，sex and gender.There is a significant correlation between cold violence，emotion regulation and mental health level of high school students：the degree of cold violence on campus is negatively correlated with mental health level and emotion regulation ability，and the ability of emotion regulation is positively correlated with mental health level.The campus cold violence can reversed predict emotion regulation and mental health.Emotion regulation ability can forward predict the mental health of senior high school students.Emotion regulation has mediating effect on campus cold violence and mental health.