Objective To explore the prevalence rate of social anxiety disorder（ SAD） among secondary vocational students in Daqing and to discuss the relationship among parenting style， fear of negative evaluation， self acceptance and social anxiety disorder. Methods A total of 1 800 students from 5 secondary vocational schools in Daqing were investigated by questionnaires including Egma Minnen av Bardndosnauppforstran （EMBU）， Fear of Negativity Evaluation Scale（ FNE）， the Self Acceptance Questionnaire（ SAQ） and the Interaction Anxiety Scale（ IAS）. According to the two screening criteria of IAS and BSPS， the students were divided into high， mid and low SAD groups for DSM- Ⅳ diagnostic interview. The scores of SAD and non- SAD groups were compared to explore the related factors of SAD. Results Total of 1 617 valid questionnaires were recovered， and the valid rate was 89.8%. The point prevalence of SAD among secondary vocational school students in Daqing was 19.89%（ 95%CI： 0.191-0.207）. There was no significant difference between the gender and only-child in the prevalence rate of SAD（ χ2=0，P=0.983；χ2=1.062，P=0.303）. A binary Logistic regression was employed for all of the independent variables with the dependent variable was whether to be diagnosed as SAD by SCID. Finally， four factors， self-acceptance， self-evaluation， fear of negative evaluation and mother's preference entered the regression equation stepwise. Conclusions The point prevalence rate of SAD was 19.85% in Daqing secondary vocational school students. The factors of self-acceptance， selfevaluation， fear of negative evaluation and mother's preference could influence the onset of SAD.