This study tested the hypothesized pathways from parents' marital quality to Korean adolescents' school adjustment through the perception of self and parent-child relations. Based on previous literature and two major family theories, the authors hypothesized a path model to explain the process of how parents' marital quality influenced school adjustment through child's self-esteem and parent-child communication. The path model analysis was used with 578 Korean adolescent students in academic high schools. The results showed that Korean youth were likely to better adjust to a school setting as they perceived that their parents had a good marital relationship. The interparental relationship directly affected school adjustment but not psychological adjustment of self-esteem. Additionally, the marital quality of parents had an indirect effect on Korean youth's school adjustment in the mediation process of parent-child communication. Academic and practical implications are also discussed, followed by limitations and future directions. (Contains 2 figures and 1 table.)