This study was performed to eatablish the Cephalometric standards and growths change of Korean Teen aged group by McNamara’s Analysis. The data from Cephalometric films of 161 male and 205 female subject aged from 10 to 18 years of Normal Korean were used for this study. The following results were obtained; 1. Means, standard deviation from measured values in each age group and sexual values were obtained. 2. Greater measurement showed in male than frmale in Condylion to point A, Condylion to Gnathion, MaxilloMandible differential and ANS to menton in linear measurement of 18 age group. 3. Condylion to point A, Cndylion to gnathion, MaxilloMandible differential and ANS to Menton are increased as the age increased. 4. Facial axis angle and Mandible plane angle of 15 and 18 aged group showed less value than that of 10, 11, 12 age group. 5. There was no significant value changes of Lower incisor to A-Po, SNA angle and Lower pharynx by the increasing of age.