Abstract: ObjectiveThe study examines prevalence rates and related social-psychological factors of intentional injury among secondary school students and documents preventive intervention survey.MethodsThe 12 430 students in grads 712 were surveyed using an anony mous questionnaire.ResultsThe prevalence rates of intentional injury rangen from 2.5% to 30.4% and are related to sexand grade.The results of multivariate Logistic regression analysis show that school record,education level of father,depression and anxiety are associated with suicidal plan.ConclusionPrevention of intentional injury behaviors should take into account related social factors and the mental disorder.