Maxillofacial fractures account for about 3-4% of the total body fractures and are one of the major diseases in maxillofacial surgery. Among the causes of maxillofacial fractures, traffic accidents are the first, accounting for 59.81%, followed by brawl injuries, fall injuries and fall injuries, and the rate of maxillofacial fractures in various traffic accidents is as high as 60%. As the maxillofacial area is rich in blood circulation, connected to the cranium and the neck, and is the starting point of the respiratory and digestive tracts, the patient may suffer from local hematoma, edema of the tongue, floor of the mouth, pharynx and larynx, local hard and soft tissue displacement and collapse due to fracture of the mandible, posterior fall of the tongue, foreign body obstruction, blood, secretions, vomit and accidental aspiration, resulting in asphyxia and respiratory changes. Maxillofacial fractures are not as serious and direct as cranio-cerebral injuries, but the damage to the patient’s facial appearance, the masticatory function and the psychosocial impact are far more important than the injuries to other parts of the body. At present, the fracture of the jaw is basically fixed with a small titanium plate and a titanium nail. The surgery is aimed at restoring the anatomical position of the fracture and the occlusal relationship and function of the teeth, and the fracture is fixed with titanium plates and nails to maintain stability. The postoperative care is also extremely important to promote good healing of the fracture and wound, which requires active cooperation of the patient. 1. Observation of the wound: pay attention to the bleeding, edema and drainage of the wound, and the residual blood stains should be aspirated or spit out. If you are doing elastic traction inside or outside the mouth, pay attention to whether the rubber band is broken and whether the elastic scale is correctly positioned, and make the necessary adjustments. Pay attention to whether the arch splint is loosened and the fracture is cut and repositioned by titanium plate internal fixation. 2, oral care: postoperative wound and oral cavity, and the oral cavity breeding a large number of pathogenic microorganisms, intermaxillary fixation, the patient can not open mouth movement, poor oral self-cleaning effect, coupled with swallowing difficulties, secretions can not be removed in a timely manner, so the intraoral wound is easy to infect, so good oral care to prevent infection and promote fracture healing is very important. The oral irrigation method is effective. When rinsing, adopt a semi-recumbent position with the head tilted forward, surrounded by plastic sheeting in front of the chest, and prepare a curved tray for receiving water; first brush the outer surfaces of the upper and lower teeth with a soft-bristled toothbrush, and then rinse the mouth repeatedly with the rinsing solution injected through the molar area to remove the fine food left in the mouth and the arch splint and interdental space; the rinsing solution is generally available as compound chlorhexidine solution. 3.Dietary care: good dietary care and timely supplementation of adequate nutrition are important links to avoid infection, promote fracture healing and enhance health. Patients need to start a full liquid diet, supplemented by intravenous nutrition; patients can eat through a special rubber tube after grinding teeth. The patient should eat in small amounts and slowly for 2 to 3 weeks after surgery, swallowing soft food, but not chewing, so as not to cause fracture displacement. 4, respiratory care: simple intermaxillary fixation or incisional internal fixation supplemented by intermaxillary fixation patients can not open the mouth, can not effectively remove oral fluid, bedside suction should be prepared, at any time to remove intraoral fluid, in order to maintain a smooth respiratory tract. In order to prevent the accumulation of fluid or eating accidentally attracted asphyxiation, the bedside should also prepare scissors and other items, once the accident, that is, quickly cut the rubber band, lift the intermaxillary fixation, rescue. 5, psychological intervention: the main postoperative psychological care. The patient’s psychological disorder should be reflected to friends, relatives and family in time, and it is recommended to give more comfort and encouragement to the patient, so that he or she can quickly get rid of anxiety and fear, overcome all kinds of bad emotions, overcome psychological despondency, and establish confidence in life. Provide patients with information on cosmetic surgery, dental implants and ways to speed up recovery. Adjust the patient’s expectations so that he or she feels the need for health reconstruction and takes the initiative to return to the good condition before the disease. Pay attention to the education of safety knowledge and promotion of regulations. 6, functional exercise and occlusal adjustment: patients with jaw fractures should gradually begin to make mouth opening exercise training after 3-4 weeks, mouth opening degree exercise to reach 3 cross fingers is appropriate, otherwise it may cause temporomandibular joint ankylosis, mouth opening difficulties and osteoporosis. If the occlusal relationship is unsatisfactory, orthodontic traction treatment is feasible.