Drawing on the 3rd wave and career/entrance to college data from Gyeonggi Education Panel Study(GEPS), the structural relationship among the determinants of college student performance was investigated in this study. Especially, the factors influencing college student performance focusing on the data of 3rd grade in high school were examined, The results of the study are as follows: First, social capital in family, social capital in school, educational aspiration and prepare for college had a positive impact on college student performance, while high school grades showed no significant result. Second, while both social capital in family and social capital in school had a positive impact on college student performance, social capital in school is more influential than social capital in family, especially in all variables such as college student performance, educational aspirations, prepare for college, high school grades. Third, educational aspirations showed positive direct effect on high school grades and prepare for college but did not have direct effect on college student performance. However, educational aspirations had indirect effect on college student performance through high school grades and prepare for college.
The suggestions of the study are as follows: First, the government and schools should apply social capital in schools for disadvantaged student. Second, schools and teachers should pay attention to the pre-college characteristics of their students and prepare education programs for them.