Hip replacement is also known as artificial hip replacement, the artificial prosthesis contains the femoral part or acetabular part using prosthetic inlay, bone cement and screws fixed on top of the normal bone to replace the diseased joint and rebuild the normal function of the patient’s hip joint. The post-operative care requirements of hip replacement are as follows: 1. 6 weeks after surgery, patients should have an abductor pillow between their legs when lying in bed; 2. After the anesthesia subsides after surgery, we should try to do more functional exercises of the ankle pump, slowly flexing and extending the ankle joint at the maximum, and try to do it for at least 5 minutes every hour, using the squeezing pressure generated by the muscle contraction itself to massage the blood vessels of the lower limbs to prevent thrombosis, this way not only for middle-aged and elderly patients, but actually for young patients This method has good effect not only for middle-aged and elderly patients, but also for young patients; 3. 1-2 days after surgery, walk on the ground, do not sit in a low chair, do not overflex the hip joint and do not lie on the side; 4. 1 month can hold a walker or double crutches, 2 months can hold a single crutch, 3 months can use a cane for protection, 6-12 months can basically walk normally.