The author analyzed 64 males and 65 females with normal occlusion from the childhood to the juvenile korean roentgenocephalometrically. And following conclusions were obtained by means of linear analyses. 1. Maxillo-facial structure growth continued quite rapidly until puberty from childhood, and growth of male was increased than that of female after Hellman dental age IV A significantly. 2. The order of growth increments were mandibular, maxillary, and cranial base length in both sexes. 3. In both sexes, the growth of anterior face was more rapid than that of posterior face, and lower facial growth was greater than upper facial growth of anterior and posterior face. 4. The maxillo-facial height growth was rapid than that of the depth in both sexes.