To improve the corrective result for the nose deformity of cleft lip, we have used a medially based advancement flap of the vestibular skin and alar cartilage in 106 patients. Satisfactory results were obtained. The key points of the procedure include completely exposing and freeing the alar cartilage, suspension and reposition of the deformed part. An incision along the alar-facial groove on the cleft side helps to release the malposition. Through the operation, the flattened ala, the asymmetrical nostril and the web in the vestibule were all restored closely to normal.