Informed by acculturation, ecological, and social capital theories, the study examined the contribution of parental acculturation, parental involvement, and intergenerational relationship to well-being in Southeast Asian American adolescents. Using data from the Children of Immigrants Longitudinal Study, 491 Southeast Asian American adolescents and their parents comprised the sample. Path analysis showed that parental involvement fully mediated the effect of parental acculturation on intergenerational relationship, whereas intergenerational relationship mediated the effect of parental involvement on child outcomes. Service implications are discussed.