The purpose of this study is to explore how social capital in family is utilized and accepted for children s education in low-income family and to analyze the main factors for success in child education. Qualitative case study using in-depth interview was conducted. The results of the study are as follows. First, parents were actively using social capital to support their children s education. The most friquently used social capital by parents was ‘talking with their children’. In addition, parents were actively using social capital such as ‘ensuring learning time’, ‘creating a learning-friendly atmosphere’ and ‘complimenting and encouraging’ for their children s education. Second, the main factors that enabled social capital to be successfully used in children s education in this low-income family were ‘positive parent-child relationship’, family norms that stimulate learning motivation’, ‘strategic utilization of potential resources’, and ‘balanced distribution of parental roles’. Based on the results of the study, discussions and implications regarding the child education in low-income families were presented.