The purpose of this study is to examine the effect of menarche on physique change of the female students, comparing the difference of the physique, the physique index and the based on experiencing menarche. This paper gave the t-test both the female students with experience of menarche and ones without experience of menarche for two hundred eighteen 6th grade female students at three different elementary schools in Jinju. The result is shown as follows: 1. In comparison of the physique between the female students with experience of menarche and ones without experience of menarche, the female students with experience of menarche were taller in stature, broader in the girth of a body, wider in the width of a body, and heavier in the weight than ones without experience of menarche. The average height and the average weight of the female students with experience of menarche were 48.1kg, and 153.4cm, respectively. 2. In comparison of the physique index, the body mass index, the trunk width index, and the lower limb index of the female students with experience of menarche were higher than ones without experience of menarche. However, there was no difference for the skelic index and the upper limb index between the female students with experience of menarche and ones without experience of menarche. 3. In comparison of the body composition, the triceps skinfold thickness, the subscapular skinfold thickness and the %fat of the female students with experience of menarche were thicker and higher than ones without experience of menarche. The average %fat of 6th grade female students was 25.9%. 4. The age of menarche for the 6th grade female students was 11.3-year-old. The age of menarche was related with the %fat the most, and the physique and the body composition were related with the triceps skinfold thickness, the girth of a calf, the subscapular skinfold thickness, the girth of an upper arm, the girth of the hip, students\' sitting height, and the weight, in order. And also, the physique index was related with ULI, LLI, SI, BMI, in order.