The purpose of this study is to investigate the fit of ready-to-wear garment for girls at the age of puberty and to find out the respective differences by age and locality. For this study, a questionnaire survey was conducted to 547 girls in Seoul and Gyeonggi-do. As a whole. the largest parts of complaints for unfitness were height, waist circumference and, next hip circumference. According to the result of comparing the fit of ready-to-wear garment by items, the fit of clothing for girls at the age of puberty gets relatively worse with the increase of age in all items except one-piece. As for the fit by parts of ready-to-wear garment, significant differences were observed according to age in the length of sleeve, crotch and the length of upper garments. That is, girls at the age of 10${sim}$11 were found to think that their clothes are long in the three measures.