We reviewed 240 patients with facial bone fractures treated at the department of oral and maxillofacial surgery between Jan.1.1997 to Dec.31.1997.These results were obtained as follows: 1. The ratio of men to women was 3.5:1. 2. The age frequency was highest for people in their 20's 34.2%, in their 10's 21.63%, and in their 30's 20.41%. 3.The fractures were at the highest incidence in September at 13.3%, followed by in May at 11.25%. 4. The frequent causes were traffic accidents 47.9%, fisticuffs 20%, accidents caused by falling or slipping 16.25%, working traumas 8.75%, and sports 7.1%. 5. The most common location of facial bone fractures was the mandible 67.2%. The frequent fracture sites of the mandible were symphysis, angle, condyle, and body in the order. 6. The associated injuries of facial bone fractures were neurosurgry, orthopedic surgery, cardiothoracic surgery, ophthalmic surgery and general surgery. 7. In respect of treatment, open reduction used 84.3%of the time. 8. Post operation complications were as follows: neurological problem 2.08%, malunion 1.67%, facial asymetry 0.83%, malocclusion 0.83%, and infection 0.41%.