The purpose of the present study was to investigate relationship between normative influence on clothing conformity and authoritarian personality, fashion interest, and clothing importance. The sample of this study consisted of 756 subjects assigned to eight groups according to sex, age and residence. In this study normative influence on clothing conformity, fashion interest, and clothing importance were measured by 20 Likert type questions adopted from previous research or developed for this study. Authoritarian personality was measured by Min`s 35 Likert type questions. The data were analyzed by ANOVA, multiple regression and correlation. The results showed that 1) authoritarian personality, fashion interest, and clothing importance was positively related to normative influence on clothing conformity. Among these, fashion interest was the most significant varible. 2) Normative influence on clothing conformity varied by sex and age: that is, females conformed more than males, and younger sample conformed more than older sample.