Abstract: Objective To explore the incidence and associated factors of campus violence among primary school students in an ethnic minority county of Yunnan province and to provide evidences for implementing relevant interventions.Methods A total of 657 students of grade 1 to 6 were selected from primary schools in 9 administrative villages in an ethnic minority county of Yunnan province with multistage stratified sampling. Questionnaire surveys and interviews were carried out among the students in November 2015. Univariate analysis and multivariate logistic regression were used in data analyses.Results The reported incidence rate of campus violence was 37.70%. Of the 233 students reporting campus violence victimization, 196 and 96 experienced victimization of physical violence and property violence, with the reported incidence rates of 31.72% and 14.89%. Multivariate logistic regression analyses revealed that the risk factors for victimization of campus violence included male gender (odds ratioOR=2.630), Han nationality (OR=2.416), ever witnessing fighting among classmates (OR=1.250), and ever experiencing physical punishment by teachers (OR=1.906).Conclusion The incidence of campus violence victimization is relatively high among pupils in ethnic minority regions and effective interventions need to be implemented to control campus violence.