This study examines the effects of maternal behaviors and children’s self-control ability ontheir subjective well-being. Data were collected from 416 fifth- and sixth-graders residing inKwangju, Korea. Cronbach’s α and the hierarchical regression analysis method were employedfor a statistical analysis. According to the results of the hierarchical multiple regression analysis,children’s self-control ability best explained their subjective well-being. For individual factors,motivational self-control had the greatest effect on subjective well-being, followed by behavioralself-control, cognitive self-control, the level of income, gender, and the employment status, inthat order. The results for effects of maternal behaviors and children’s self-control ability onchildren’s subjective well-being highlight. The important roles played by the mother and thechild’s self-control ability in improving the child’s subjective well-being. The study contributesto the literature by providing fundamental insights into children’s higher quality of life.