Chinese character face plastic surgery is to grind or remove the mandible by surgery to achieve the effect of face-lifting without sagging. Simple resection, bone grinding and face-lifting surgery only remove the hypertrophy of the mandibular angle. The simple method of bone grinding is to grind the hypertrophic mandibular angle with a grinding head, and the grinding amount is determined by the experience of the surgeon. Grinding bone+removing hypertrophic mandibular angle and bone, and smoothing bone surface, this method combines the advantages of the above two simple methods. Although the operation method is relatively complicated, it is the most popular operation method from both the side and the front. The curvature of mandibular angle after bone grinding and face-lifting surgery is beautiful and the effect is ideal.