Abstract: In 1985, 4747 Mongolian students of 7-18 years old were measured. The 6 items of investigation are: stature, sitting height, body weight, chest circumference, shoulder breadth and pelvic breadth, from which constitutional indices of 12 items were calculated. The 12 items indices include stature-sitting height index, stature-weight index, stature- chest circumference index, stature-shoulder breadth index, stature-pelvic breadth index, Vervaeck index, shoulder breadth-pelvic breadth index, Erismann index, Broca index, Pelidisi index, Rohrer index and Livi index. The age and sex characteristics of the 12 items were analysed by the author. Data comparisons were made between 1) the students in urban and rural area, 2) Mongolian students and Han students of the whole country, 3) Mongolian students in different years.

Key words: Index; Development; Body type; Mongolian nationality