Abstract: To adopt the method of stratified random sampling, nine items of measurements and their relevant indices of the head of 2087 (male 1055, female 1032) normal youths of 7-16 years old of Dong nationality from Sanjiang Autonomous County of Guangxi were investigated in this paper.The relation- ships between the youth' s development of head and ages were compared and analyzed. Classifications are based on various cephalic and facial indices. The results show that the nine items of measurements of youths grow with the increase of age besides the maximum bead breadth, and significant difference of the nine items berween the males and females was found. The head-face type of both sexes of Dong na- tionality belong to brachycephaly according to the cephalic index, hypsicephalic type according to the length-height index of the head, tapeinocephalic type, to the breadth-height index, euryprosopy, to the morphological facial index.

Key words: Youth; Head; Dong nationality; Somatometry