Hip surface replacement, as the name implies, is the replacement of the surface of the hip joint with a prosthesis to reduce the patient’s pain and restore joint function. Since the replacement is limited to the surface of the joint, it is less traumatic, less bleeding, and the original anatomy of the hip joint is preserved to the greatest extent possible after the surgery, resulting in better functional recovery. In Europe and the United States, this has become the procedure of choice for initial hip replacement. This surgery is most commonly used in the treatment of advanced osteonecrosis of the femoral head, which mostly occurs in young patients. In the advanced stage, osteonecrosis of the femoral head collapses, causing pain and reduced motion of the hip joint, which seriously affects the normal work and life of patients. The effect of drug treatment or other surgical treatment is poor, while hip joint surface replacement is more effective and is an effective method to solve advanced femoral head necrosis. This technology can also be used for congenital hip dysplasia, traumatic hip arthritis, infectious arthritis resting stage, rheumatic hip arthritis, ankylosing spondylitis and other diseases.