Abstract: Stature and body weight of 1739 cases of Daur students (854 male and 885 female)were investigated. Body surface area of every individual and the average of body surface areas of 14 groups of 6 —19 years old students were calculated by means of Stevenson. The results showed as follow. 1) Body surface area of the Daur students enlarged with age increase. 2)Average of the body surface areas of the 11 years old female surpass to that of the male of the same age, but the case reverse for 14 years old students. 3)After 15, deviation of body surface area between male and female increase.

Key words: Body surface area; Students; Daur