With the rapid development of industry, agriculture, transportation, urban construction, etc. With the improvement of people’s economic conditions. The purchase of transportation is rising year by year. But the ensuing public hazard brought to people is car accidents. Injuries caused by car accidents have become the primary problem affecting human health. Since the jaw and face are exposed to the surface of human body, the proportion of trauma has a tendency to increase year by year. In interpersonal communication, the face gives the first impression. It is undeniable. Those who are beautiful in appearance win more opportunities in intercourse. If trauma occurs on the maxillofacial surface, it will damage one’s appearance. In order to strive for the best repair of oral and maxillofacial soft tissue trauma, reduce or avoid the late deformity, it is especially important to take the plastic and cosmetic method to deal with the trauma in the first phase. By thoroughly cleaning the wound before surgery, reducing and avoiding foreign body residue as much as possible, anatomically resetting the displaced and deformed tissues during surgery, repairing the defective tissues, fine sutures, fine needles and fine threads can avoid the appearance of postoperative scar, make the wound heal in one phase, and reduce the local deformity and functional disorder caused by postoperative scar contracture.