Professor Zhou, a famous plastic surgeon, has the characteristics of mandibular angle plastic surgery: the operation is through oral approach, and there are many cases of mandibular angle plastic surgery with rich experience. Skilled operation, mild postoperative edema and quick recovery. According to different face shapes and mandibular angles, different methods of long arc osteotomy are used to grind bones, and the long arc osteotomy of mandibular angle is accurate, which ensures the improvement of face shape. Mandibular grinding is to reduce the face and improve the front view of the face. Intraoral osteotomy can combine the removal of hypertrophic masseter muscle and buccal fat at the same time, which makes the effect of reducing face more obvious. Combined osteotomy of the lower edge of mandibular angle can be done, which has a special improvement effect on the big face, long face and generous face caused by excessive mandible, making the face smaller and more delicate.