The purpose of this study was to examine the dynamics of psychological and sexual violence in dating among high school students. Subjects consisted of 1,205 male and female adolescents from all parts of the country. 1,092 respondents were included in the final analysis(90.6%). For psychological violence, 13.3%(n=145) reported to have such experiences with a dating partner at least once or more. The most frequently used forms of violence were shouting, insulting language and behaviors, and blaming for a physical appearance. There were no sex differences in frequency of psychological violence between males and females, as an aggressor or a victim. Responses of victims were mostly negotiation and communication, and trying to forget it. For sexual violence, 27.8%(n=303) was found to have such experiences in a dating scence at least once or more. Hugging and kissing, close contact of parts of body, and gazing at parts of body were most frequently used forms. Responses of victims were pretending not to notice it and responding in the same way. There were significantly more male aggressors of sexual violence than females, but no sex difference in the number of victims. Those who reported to have experiences of violence were compared to the counterparts who had no experience in attitudes toward violence between dating partners and married couples, experiences of violence in childhood, school violence, and observations of violence between parents. Those with experience of dating violence reported to have significantly more experiences of violence in childhood and school, and parental violence. Based on the findings of this study, suggestion were made in regard to the need for development of dating violence prevention program for adolescents, and for welfare programs for adolescents in community.