Artificial joint surgery has evolved over the past four decades to reach a safe and reliable level. Over 90% of artificial joints are reported to be successful 20 years after surgery. Modern artificial joints have achieved wear resistance, durability and no rejection in the body. Patients who originally walked with a limp move freely after surgery and even forget it exists. However, the polyethylene in the artificial joint still has the problem of wear and tear, so the patient should not be overly active after the surgery, and should wear soft-soled shoes with low heel, take appropriate field walks, outings and indoor work, but should not climb too much, go up and down stairs, run, and preferably use sports that do not increase the load on the joint, such as swimming and gymnastics. Postoperative rehabilitation points on the day of surgery: the special position of the affected limb should be maintained: supine position with pillows between the knees, knees and toes upward to prevent internal rotation of the hip. When the patient’s vital signs are stable, he/she should adopt a semi-sitting position as soon as possible; ask the patient to start active contraction of the quadriceps, triceps and tibialis anterior muscles to accelerate venous reflux and prevent deep vein thrombosis. Ice packs were given for 24 hours to reduce pain, keep the airway open, and encourage the patient to breathe deeply and cough to prevent lung infection. On the first postoperative day, the plasma drain and urinary catheter were removed in the morning, and the patient was instructed to get out of bed with a walker. In the afternoon, instruct the patient to get out of bed again and teach him/her to get out of bed, go to bed and take steps correctly. Strengthen the muscle strength exercise of both lower limbs. At the same time, the patient should be given psychological support. The more enthusiastic the patient is devoted, the faster the recovery. 1. Ankle dorsiflexion: Active maximum flexion and extension of the ankle joint and resistance training. Hold each movement for 5 seconds, repeat 20 times/group, 2 to 3 groups per day. 2.Quadriceps training: do static contraction of quadriceps, hold for 5 seconds each time, 20 times/group, 2-3 groups/day; at the same time, the patient can do straight leg raising exercise on the bed, not requiring the height of lifting, but having a lag time of about 5 seconds; slowly flex the knee and hip to slide the heel of the affected limb towards the hip, keeping the toe upward to prevent internal rotation of the hip. 3, resistance muscle strength training: resistance adductor and resistance abductor and other long muscle strength training can be performed, each action is held for 5 seconds, repeat 20 times/group, 2 to 3 groups/day. Postoperative day 2-3: Patients should be more active and strengthen the dorsiflexion, plantarflexion and quadriceps training of the ankle joint at the same time. Postoperative days 4 to 14: The patient’s infusion should be stopped, and the focus should be on muscle strength exercise and increasing joint activities, with hip flexion reaching 70° to 90°, abduction 15° and external rotation 10° at discharge. Teach the patient to walk with a double crutch and arrange a post-discharge rehabilitation training program. During this period, supine straight leg raising and knee and hip flexion training should also be performed. And strengthen the postural transfer training and joint mobility training. Postoperative week 2 to 3: In addition to the above training, strengthen hip flexion, abduction and external rotation exercises, the training method must be correct to prevent joint dislocation. Train the patient to walk with a single crutch. Post-operative week 4 to 3 months: the patient should be trained to perform daily life functions, taught how to go to the toilet, put on and take off shoes and socks, sit in a car, go up and down stairs, and the patient who did not have a large rotor osteotomy should give up the crutches in about 6 weeks. At the same time, patients should be asked to have regular review to prepare for their return to society. Patients discharged from the hospital after artificial hip arthroplasty should still pay attention to the following issues in their daily life: 1. Sitting: the sitting time should not be too long in the first month after surgery to avoid hip edema, and can be improved by applying cold compresses and elevating the affected limb, keeping the knee joint lower than or equal to the hip, not sitting on a chair or sofa that is too low, not crossing the legs and ankles, not bending forward more than 90 degrees, and sitting with The body leans backward with the legs stretched forward. 2.Toilet: use a raised homemade toilet seat to go to the toilet, or lean back and extend the affected leg forward to go to the toilet with the assistance of the body, pay attention to keep the knee joint higher than the hip. 3.Fetching things: Don’t bend down to pick up things on the ground within 2 weeks after surgery, don’t suddenly turn around or reach for the objects behind you, and it is advisable to put the rice bowl in front of you when eating. 4.Ride: sit with your hips positioned forward, lean your body backward and stretch your legs forward as much as possible. 5.Shower: After the wound has healed, the auxiliary hold can reliably take a shower, because there is a certain danger of standing in the shower, so you can sit on a high stool, the nozzle is a removable handheld nozzle, and prepare a bath sponge with a long handle so that it can reach the lower limbs and feet. 6.Put on and take off shoes and socks: ask someone to help or use shoe plugs, choose elastic shoes without laces, loose pants, and carry shoes medially for those with lateral incisions after the line and laterally for those with medial incisions before the line. 7.Physical activities that can be performed after full recovery: walking, gardening, cycling, bowling, table tennis, swimming, dancing, and maintaining proper weight. Avoid activities that produce excessive pressure on the new hip joint causing wear and tear, such as jumping, fast running, skiing, water skiing, tennis, etc.