The purpose of this study was giving some helpful datas in analysing the degree of anteroposterior jaw disharmony with the Wits appraisal. The cephalograms of 105 Korean adults with normal occlusion rangig from 17 to 20 years of age ane 76 Koreans with various malocclusion ranging form 12 to 24 years of age were studied and analyzed statistically. The results were as follows; 1. The mean value of Wits appraisal in normal occlusion group wasa -0.82mm in males and -0.17mm in females. 2. There was no significant difference between the males and females in normal occlusion group. 3. The mean value of Wits appraisal in Angles class II malocclusion group was 2.67mm and higher than normal group. 4. The mean value of Wits apraisal in Angles class III malocclusion group was -8.11mm and lower than normal group.