The present study tested a theoretical model of emotion regulation between parent-offspring dynamics and emerging adults' adjustment. The mediating role of emotion regulation strategies, including cognitive reappraisal and expressive suppression, were investigated for the effects of mother-offspring and father-offspring dynamics on emerging adults' adjustment. A sample of 352 Chinese emerging adults in Hong Kong (230 female, 121 male) participated in this study. Participants were asked to complete a set of self-reported questionnaires. Findings based on structural equation modeling indicated that greater mother-offspring intimacy and father-offspring intimacy predicted emerging adults' better cognitive reappraisal and psychological, social, and general health. Greater mother-offspring conflict also predicted more expressive suppression and poorer psychological and social functioning. Distinctive mediation pathways as a function of parents' gender were identified. These findings enrich the literature for parent-offspring dynamics and emotion regulation as explanatory processes of emerging adults' adjustment. Copyright © 2019 Cheung et al.