A question has been raised that there is no positive relation between the quantitative expansion of higher education opportunities and the realistic distribution structure of higher education. This conclusion is partly because a systematic empirical study has not been made to identify the changes in the distribution system of educational opportunities in accordance with the educational expansion. This study is to analyse the effects of higher education expansion over the equality of educational opportunities. The results of analysing the equity problem showed that the family background of university and college students was the significant distributor over the educational opportunities. Parents' education and occupation, and house location were the significant factors in distributing higher education opportunities. As the higher education expansion goes on, the educational opportunities were enlarged for the mid lower SES group. For the mid higher SES group, the opportunities were shrinked. Contrastingly enough, educational opportunities were narrow for the mid-lower SES group when the expansion policy was in effect. And the opportunities for the mid-higher SES group were broadened. These mean that the distribution of higher education opportunities was unequal. When the house location was considered, the opportunities for the mid-lower SES group in the city area and for the mid-higher SES group in Seoul were extended. The results mean that the distribution of higher education opportunities was showed differences among individual universties and colleges, and across SES groups. Based on this study results, the following recommendation was made. The inequality in distributing educational opportunities should be studies further since the simple expansion of higher education does not result in equitable distribution of higher education.