In the highly industrialized modern society, the pace of life is getting faster and faster, and accidents are happening more and more frequently; such as traffic accidents, occupational disasters, falls from height, sports injuries, and even fights and brawls can cause serious craniomaxillofacial fractures. When a fracture occurs, the injury is often serious, and if it is not treated properly, it will cause hematoma and ecchymosis, facial deformity, diplopia, masticatory dysfunction of occlusion, mouth opening restriction, affecting breathing, etc. Therefore, it is very important to treat craniomaxillofacial fractures correctly and seek medical consultation in time. In principle, craniomaxillofacial fractures should be treated promptly, and the earlier the treatment, the better the results. The treatment of craniomaxillofacial fractures is also very important after excluding cranial and other important organ injuries. Surgical repositioning of the fracture is generally chosen at two times, i.e. within 24-48 hours after the injury, or 1 week after the operation when the swelling has basically subsided, and at the latest not later than 4 weeks. A fracture of the jaw causes malocclusion and makes life difficult, so it is more important to correct the fracture early and restore the normal occlusal relationship. Because of the rich blood supply to the face, fibrous or bony misalignment may occur at the fracture end 4 weeks after the injury, making the repositioning difficult, so early consultation should be made. The principle of surgery is to try to anatomically reposition the fracture. If the best time for surgery is missed and bony healing has already occurred, the difficulty of anatomical repositioning is increased, and it usually takes 6 months to improve the shape by using materials such as filling.