Total hip arthroplasty is a kind of surgery with very definite curative effect. Early postoperative rehabilitation training plays an important role in promoting physical recovery, maintaining joint stability, enhancing muscle tone, improving joint mobility and restoring movement coordination. Within one day after surgery, one should lie flat and should not use pillow within 6 hours. On the day after surgery, the ankle joint can be actively flexed and extended to promote the return of blood to the lower limbs and reduce the chance of deep vein thrombosis. On the second postoperative day, the bed can be swung up to 30°, and active ankle flexion and extension exercises and isometric contraction of quadriceps muscle can be performed to maintain muscle tone. On the 3rd to 4th day after surgery, the bed can be swung up to 60°, and the patient can take the initiative to perform hip and knee flexion and extension exercises and straight leg raising exercises to increase the venous return and prevent the atrophy of quadriceps muscle. Pay attention to hip flexion should be less than 70 degrees, and the lower limbs should not be inwardly retracted. One week after the operation, practice sitting to standing position, shift the center of gravity to the healthy side, support the bed with both hands, keep the affected leg abducted, slowly move the affected limb to the ground, then move the healthy limb to the ground, and sit on the edge of the bed. Then stand up with the support of the crutches and practice walking. Exercises from the second postoperative week: walker Suitable for the initial walking training, in preparation for the use of crutches or canes. The affected limb is basically weightless, the affected limb is stepped first, the center of gravity is shifted forward, the weight is distributed on the walker and the healthy limb, and the healthy limb follows. Three-point axillary walking gait Suitable for people who have normal function of one lower limb and are unable to bear weight on the other lower limb. The double crutches advance with the affected limb and then move the healthy limb. According to the different materials of the prosthesis, the method and time of postoperative weight-bearing exercises are also different. Cemented prosthesis, 3-5 days after the operation, you can go down to the ground, initially practice walking with the help of the walker, one week later, you can use the crutches to practice normal walking. Non-cemented prosthesis, bone tissue growth into the prosthesis requires a certain amount of time and a stable interface environment, premature weight-bearing between the prosthesis and the bone due to the relative activities can produce a fibrous pseudomembrane. Generally speaking, the affected limb can be partially weight-bearing in 1.5~2 months after surgery, and fully weight-bearing after 3 months, in order to ensure that the bone tissue grows into the micropores of the prosthesis, and to reduce the rate of loosening of the prosthesis in the long term after surgery Avoid doing the action of internal and external rotation of the hip and excessive flexion of the hip in the early stage of total hip arthroplasty, and avoid sitting on the short stool or soft sofa, and not crossing the legs, and not sitting on the soft sofa in the daily life of the patients in the 6 months after surgery. “Do not sit on a short stool or soft sofa, do not cross your legs, and do not bend down to pick up objects to avoid complications such as joint dislocation.