This study investigates group dynamics of public opinion in the ideal of educational policy-excellence vs. equality. This issue is examined through the following three questions : 1. Are there any interest groups who have different meaning system or different interests in terms of the ideal of educational policy? 2. Which factors of group attributes-region, education, job, s.e.s., and age-affect responses to the ideal of educational policy? 3. What do groups think is the ideal of educational policy? To analyze these research questions, this study uses data from the "Public Opinion Survey in Education ft done by us in 1987. The data were analyzed with loglinear models. Major findings from this study are: i) Core groups, such as urban middle class, highly educated people, tend to support educational policy for excellence more than minority group. ii) Periphery groups, such as rural, low class, less educated people, are more concerned in educational policy for equality, compared with core groups. Educational policy makers should consider such group differences in the above. If they do not have information of group dynamics affecting the formation of public opinion in education, they can not coordinate or reconcile the interest of each group.