Objective To study the characteristics and regularities of somatotype growth of Yugu adolescents. Methods The somatotype growth of 989 Yugu adolescents（male:512,female:477）in Sunan was evaluated by the Heath-Carter method. Results The average somatotype of YuGu adolescents in males was mesomorphic ectomorph (3.0-3.6-3.7), and in females, the average somatotype was ectomorphic endomorph (3.8-2.9-3.6). The somatotypes develop from central,endomorphic ectomorph to mesomorphic ectomorph in the male, however, in the female from central, ectomorphic endomorph,endomorphic ectomorph, to mesomorphic endomorph.Conclusion The somatotypes of Yugu adolescents are very different between males and females. In the male group, the somatotypes of the 7-12 yearold group of Yugu adolescents are similar to the Mongolia，Han ethnic,Zhuang ethnic and Hungary. The somatotypes of 13-17 year-old group are similar to Tibetan，Zhuang ethnic,Han ethnic and Daur. However for the female group ,the somatotypes of the 79 yearold group are simila