Acetabular fractures are serious and complex intra-articular fractures caused by high-energy injuries, mainly from traffic accidents and work-related accidents, and often cause severe disability if not treated properly. In recent years, there is an increasing trend of acetabular fracture cases, and conventional X-ray and CT two-dimensional imaging can provide clear clinical information and can be used to classify the fractures accordingly. Peaison and hargadon reported that 34% of acetabular fractures were not visible on initial radiographs. Spiral CT 3D reconstruction is powerful and superior and can provide more information on acetabular fractures. The acetabulum is contained within the hip bone and is an irregular geometry consisting of three bones: the ilium, pubic bone, and sciatic bone. The anterior column consists of the socket of the superior pubic bone branch, up to the anterior inferior iliac spine, with the upper boundary of the foramen occulans in the lower part and the elevated socket rim called the anterior lip, the lower edge of which is the anterior wall. The posterior column consists of the socket of the sciatic branch, which extends upward to the lower posterior iliac spine and the sciatic notch, and the lower part is the upper posterior border of the foramen occulta, with the elevated socket rim called the posterior lip and the lower part is the posterior wall. The roof of the socket consists of the lower part of the hip bone, which spans between the anterior and posterior columns and is the main weight-bearing area of the acetabulum. The roof of the socket is mostly anterior, with the socket opening facing outward and sloping downward, forming the hip joint with the femoral head. Acetabular fracture is a serious and complex injury, and preoperative analysis of the fracture type, comprehensive evaluation, and selection of the correct surgical plan are all required. Different fractures use different surgical approaches, such as the Kocher-Langenbeck approach, the iliac inguinal approach, and the iliofemoral approach. Traditional X-ray examination has the advantages of simplicity, convenience and low cost, and is the basic and preferred diagnostic tool to diagnose fractures after hip trauma. However, relying on anteroposterior pelvic radiographs alone has a 34% leakage rate for diagnosing injuries to all pelvic structures, especially for posterior wall fractures, the leakage rate is even higher. It can clearly show the location, size and number of fractures, separate the femoral head and acetabulum, and observe the acetabulum in various angles, inclinations, coronal, sagittal and horizontal positions from the front, back, internal, external, superior and inferior, which helps clinicians to understand and recognize the anatomical structure, pathological injury and post-injury changes of the acetabulum as a whole and comprehensively. It helps clinicians to understand the anatomy, pathological mechanism and post-injury changes of the acetabulum. It shows the type of fracture, the direction of the fracture line, the size and shape of the fracture block and the three-dimensional relationship of mutual displacement, the degree of collapse and destruction of the acetabular fracture, and the stability and integrity of the weight-bearing structure of the acetabulum to make a comprehensive assessment of clinical prognosis. Spiral CT acetabular 3D reconstruction is a new imaging technology, which can provide objective, three-dimensional, clear and realistic images for acetabular fracture patients before surgery, display the anatomical structure of the hip joint and subtle damage from multiple angles, make the fracture type understood and judged, and have guiding significance for good preoperative planning, selection of internal fixation devices and surgical access.