In human life, the hip joint is one of the more commonly affected joints, and common diseases include femoral head necrosis, hip dysplasia, femoral neck fracture in the elderly, ankylosing spondylitis secondary to hip stiffness, and so on. It is characterized by joint pain, difficulty in walking and even loss of living ability. Artificial hip joint replacement surgery brings good news to such patients, as the joint pain disappears, joint function is restored, and they can walk freely. The artificial hip joint is generally made of metal, ultra-high polymer polyethylene and special ceramics that are non-toxic and non-reactive to the human body, and is designed and manufactured to imitate the structure and function of the human hip joint. Generally, within 1 week after the surgery, you can walk and rehabilitate with the help of a walker. According to overseas clinical data, the majority of artificial hips have been used for more than 20 years. Artificial hip joint replacement methods include: total hip joint replacement, hemi hip joint replacement, femoral head surface replacement; biological, cemented and hybrid artificial hip joint replacement; artificial hip joint replacement revision; etc. The material composition of the artificial total hip joint includes: metal-to-polyethylene, metal-to-high cross-linked polyethylene, metal-to-metal, ceramic-to-high cross-linked polyethylene, and ceramic-to-ceramic artificial hip joints. Different surgical procedures and artificial joint materials are used for different conditions. A healthy joint is the best, a perfect artificial joint is only the second best, but it is a “boon” for patients suffering from pain. Artificial hip joint replacement is the highest level of surgical operation, with the most stringent technical and environmental requirements. It is recommended to choose a joint surgery specialist with rich experience in large hospitals above the city level to perform the surgery.