Numerous hip patients have been relieved of pain and improved their quality of life after arthroplasty. With the development of technology, the performance of artificial joints is getting better and better, and the surgery is becoming more and more perfect, but these cannot replace the role of rehabilitation exercises. Because exercise is the cornerstone of artificial joint replacement, only active and appropriate functional exercise can achieve the best recovery results. So, how should patients exercise? Prior to surgery, the patient can perform straight leg raising exercises. Method: The patient lies flat on the bed, straightens the lower limb, raises it as high as possible, then lowers it, and so on repeatedly. This method exercises the contraction of the quadriceps muscle, which strengthens the knee extension and lays the foundation for recovery after surgery. Generally speaking, on the 1st day after surgery, respiratory function exercises are carried out, and patients practice slow deep breathing and abdominal breathing by active coughing and balloon blowing, etc. Active activities of the healthy limb, dorsal extension and toe flexion of the lower limb on the affected side, and active activities of the non-operated limb. If the artificial hip joint is fixed with bone cement, the prosthesis is firmly attached to the bone during surgery. In the early postoperative period, patients can move the joint in bed, and after 2-3 days, they can try to stand on the ground with the help of crutches and gradually resume walking function. If the bone cement is not applied, the bone tissue should be slowly grown into the prosthesis pores and locked into the prosthesis, so that the patient can gradually bear weight with the help of crutches or a walker after surgery. Functional exercise can be carried out at home under the guidance of the doctor. It is important to pay attention to gradual progress, mainly to move the joints of the lower limbs and strengthen the muscle strength. You can also use a joint function rehabilitation device to passively move the joints. When exercising, avoid inward retraction, excessive internal rotation, deep squatting and cross-legged movements of the hip joint to avoid dislocation. Patients can first do bedside exercises, then stand with crutches, and then walk with crutches after adaptation. Eventually, the crutches can be abandoned and the patient can walk independently or even ride a bicycle. Whether standing or sitting, do not bend more than 90°. When sitting or lying down, avoid crossing your legs (commonly known as erlang-legged) or cross-legged movements. Turn the whole body when turning, not just the upper body. Do not bend your hips to pick up things, you should use an extension pole or ask someone to help. Chairs, stools, sofas should be slightly higher, preferably with a backrest and armrests. Do not use squatting toilets, and toilets should not be too low, preferably equipped with handrails to facilitate standing up.