The purpose of this study was to assess the soft tissue changes of upper lip & nose using 38 patients who treated with Le Fort I osteotomy for the correction of dentofacial deformities. Patients were divided into three groups. One was advancement group of maxilla (Group I, N=14), another was impaction group of maxilla (Group II, N=12) and the other was combination group (advancement & impaction) (Group III, N=12). Preop. and 1 month postop. (T1), preop. and 6 months postop. (T2) were analyzed and compared. The results obtained were as follows; 1. The upper lip thickness (UL-VP) moved anteriorly approximately 62% of the horizontal maxillary change and this was significant in the advancement group (Group I) 2. The upper lip length (Stm-Sn) and the lower border of upper lip (Stm) moved superiorly 25%, 40% of the maxillary impaction group (Group II) (P<0.05) 3. There was significancy in the upper lip thickness (UL-VP) approximately 56% of the combination group (Group III) (P<0.05) 4. The nasolabial angle decreased in all groups, but there were no significancy.