The objective of this paper is to provide fundamental data to establish measuring system of clothing that is more accurate. For the objective, stature and ration of height items, stature and ratio of circumference item, stature and ratio of length item on the children are investigated to obtain the interrelation of each item. Data for the research are selected from 52 people of 6 years old on boys and 49 people of 6 years old on girls who dwell in Seoul. The results of the research are as follows. Because ratio of the body on the stature of children is different from ratio of the adult, the same method for the adult cloth is not appropriate when producing the cloth of the children. observing the interrelation of each measurement item, measurement system of the children cloth that is indicated by the stature and the breast circumference, the stature and the waist circumference is not reasonable. Because the value of correlation of back length and circumference item was, it is not suitable that the back length is graded by the breast circumference when producing the cloth of the children.