The materials for femoral head necrosis replacement are divided into femoral head materials and acetabular materials. Generally, from the beginning of replacement surgery to the present development, they are divided into alloy materials, polyethylene materials and ceramic materials, and different materials have different degrees of wear and tear. Nowadays, the more advanced ceramic materials have a lower wear rate, and the imported ceramic materials can be used for 20-25 years; the domestic ones may be less for 4-5 years. The material of osteonecrosis replacement is not only related to the material, but also related to the physical condition of the replacement surgery, late strain, exercise, and the surgical treatment. Nowadays, both domestic and domestic surgical techniques, both materials and surgical techniques are very mature and advanced, so it is more beneficial for patients to choose materials according to surgeons and surgical techniques.