ObjectiveTo investigate the epidemiological characteristics of antisocial personality disorder （ASPD） in young men in Chengdu and explore the characteristics and risks of violence.MethodsStratified random sampling was used to conduct a self-assessment questionnaire survey in 4 108 males aged from 18 to 34 in Chengdu, including general demographic characteristics, structured clinical interview for the diagnostic and statistical manual of mental disorders-Ⅳ axis Ⅱ disorders （SCID-Ⅱ） personality disorder screen questionnaire, violence questionnaire, psychosis screening questionnaire （PSQ）, Alcohol Use Disorders Identification Test （AUDIT） and drug use. χ2 test, univariate and multivariate logistic regression were used for analysis and odds ratio （OR） was calculated.ResultsThe positive rate of ASPD was 5.91%, which was associated with young age, unmarried, unemployment state, low educational level, violent behavior, psychotic symptoms, alcohol and drug use （P