This study examined the effect of abolition of school uniform on personality. The subjects were 317 boys(mean age : 18) and 312 girls(mean age : 18) in third grade of high school. the subjects were selected from 4 uniform high schools and 4 free-choice wearing clothes high school in which were situated at north and south part of Han-River in Seoul. They wee administered with the following questionnaires to measure the creativity individuality self-efficacy. conformity of behaviour conformity of attitude autonomy and responsibility. Results indicated that (1) the effect of abolition of school uniform on personality must be considered in the moderator effect of the preferred clothes of students. These results were discussed and its implication and following study were suggested.