Background: Childhood trauma is frequently associated with dating violence or intimate partner violence victimization in adulthood. To investigated the role of forgiveness on revictimization in close relationship, We tested the mediating effects with the three components of dispositional forgiveness-self, other, situation on the relationship between childhood trauma and adulthood dating violence victimization. Methods: We measured childhood trauma experience (CTQ), dating violence victimization in adulthood (CTS-Ⅱ), and self, other, situation forgiveness (HFS), among unmarried women in their 20~30s who have been dating at least once. Results: The results showed that self-forgiveness partially mediated the relationship between childhood trauma and adulthood dating violence victimization. However, there was no significant mediating effect of other and situation forgiveness. Conclusions: These findings suggest that the experience of childhood trauma can lower the level of self-forgiveness, and then increase the risk of dating violence victimization in adulthood. So, the interventions to facilitate self-forgiveness can help overcome interpersonal trauma and prevent revictimization in close relationships. Finally, the implications and limitations were discussed with suggestions for further research.