The purpose of this study was to investigate the relationship between psychological characteristics(needs, self-consciousness, self-esteem), attitude toward appearance and clothing attitude of high school students. Method of posing a questionnaire was adopted to obtain stochastic data required for pertinent analysis. This is the investigation of which 489(male 236, female 253) high school students located in Chungnam and Jeollabukdo province. In this statistical analysis, SPSS 10.0 for Windows Program was utilized to calculate percentage, mean and standard deviation Also, these materials were verified by factor analysis, t-test, multiple regression analysis. The results of this research were as follows: The results of analysing the factors to the response attitude toward appearance emerged three factors(conformity value needs toward appearance). Gender had the significant effects on the psychological characteristics, attitude toward appearance and clothing attitude of high school students. Psychological characteristics, attitude toward appearance of high school students had an effects on clothing attitude, i.e. gender attractiveness, fashion pursuit, self-expression aesthetic, and modesty.