Abstract: Objective To understand the situation of the primary school teachers' participation in training about child sexual abuse(CSA) prevention education, and the practice of CSA prevention education in school, and to provide references for future CSA prevention education in primary schools.Methods Using anonymous self-administered questionnaire, a survey was conducted among primary school teachers from three schools in Northeast China in April 2019.Results Of the 126 teachers, teachers in charge of class/126). 24.6%(31 Multivariate Logistic regression analysis showed that teachers who had participated in training were more likely to carry out education on the prevention of CSA in schools(OR= 5.806,95%CI:2.223,15.168). The main difficulties that teachers may face in carrying out CSA prevention education included the lack of teaching materials and relevant knowledge, as well as the topic is too sensitive. 86.5% of the teachers reported explicitly willingness of receiving CSA prevention education training.Conclusion The proportion of primary school teachers who have participated in the training on the prevention of child sexual abuse is relatively low. It is in need to train primary school teachers to promote the school-based CSA prevention work.