Before carrying out mandibular plastic surgery, doctors should first take photos of patients from six angles, such as front and side, and then divide the photos into strips with a width of one centimeter to get a beautiful ideal plan. Then, according to the X-ray photos, the plastic surgery scheme with little damage to bones and beautiful effect can be customized. The operation was performed entirely in the mouth. According to the characteristics of bone growth, the doctor will take out the redundant mandible and masseter muscle through the oral incision to rebuild the perfect face without pain and scar. The recovery period is about two weeks.