Abstract:The acetabulum is a typical spheroid joint and its physiological function is to connect the trunk and lower limbs. As an important structure for human mechanical conduction and maintenance of normal activities, the acetabulum is anatomically deep with complicated peripheral structures. Acetabular fractures are generally caused by high energy trauma. After the fractures occur, it is a big problem for many orthopedic trauma surgeons to make a rapid and accurate diagnosis and treatment. At present, the classification methods of acetabular fractures are complex and diverse. Many traditional classification methods are difficult to understand and directly reflect the fracture morphology, have a long learning curve, camn’t determine treatment or indicate prognosis. The authors aim at sorting out the traditional classification methods of acetabular fractures, summarizing and analyzing the classification methods newly proposed in the past two decades, and objectively describing their advantages and disadvantages by referring to relevant literatures, in order to deepen the understanding of acetabular fractures among orthopedic trauma surgeons.