There are different types of mandibular fractures, such as condylar fractures, mandibular body fractures, mandibular angle fractures, mandibular ascending fractures or mandibular condylar fractures. The method of fixation is different in different parts, for example, for condylar fractures, in addition to making an intraoral incision or mandibular incision for mandibular repositioning, a part of the problem can also be solved by interdental fixation. Mandibular angle fractures should definitely be fixed by micro titanium plate repositioning. The mandibular condyle fracture in children is relatively complicated, and it is controversial whether to operate or not in academic circles. Currently, mandibular condylar fracture can cause many complications or sequelae, such as limited mouth opening, even joint ankylosis, joint pain, osteoarthritis, etc., including misalignment of the jaws, so the fracture of the condyle should be specifically analyzed to determine whether it is a fracture of the condyle, whether it is comminuted, and the location of the fracture. Surgical treatment requires specific analysis.