Artificial hip arthroplasty is an important method of treating advanced femoral head necrosis. Most of the postoperative rehabilitation takes place at home, so it is especially important to train patients and their families about relevant rehabilitation care. It is advisable to continue a rational and nutritious diet and to take Chinese medicine for bone grafting as appropriate. The sitting time should not be too long in the 1st month after surgery, so as not to cause edema of the hip joint. Weight-bearing activities should not be performed for 2-3 months after surgery, and after 3 months, you can gradually transition to weight-bearing activities. It is important to minimize potential hazards in the surrounding environment, and walking exercises are recommended to be accompanied by a person to prevent the occurrence of further falls. Regular follow-up and review of X-rays are recommended. After full recovery, you can engage in sports activities, but be careful not to engage in strenuous exercises to avoid excessive pressure on the new hip joint, which may cause wear and tear. Specific care methods are as follows: 1. Sitting: the sitting time should not be too long in the first month after surgery to avoid hip edema, which can also 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 not bending forward more than 90 degrees, leaning the body backward and extending the legs forward when sitting. 2.Toilet: use a raised homemade toilet seat to use the toilet, or lean back with the assistance of the body and extend the affected leg forward to use the toilet, 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 turn around suddenly or reach for 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 heals, rely on reliable objects for showering, because there is a certain danger of standing in the shower, so you can sit on a high stool, the nozzle is a removable hand-held nozzle, and prepare a shower sponge with a long handle so that it can reach the lower limbs and feet. 6.Please ask someone to help you to put on and take off shoes and socks or use shoe plugs, choose elastic shoes without laces, loose pants, and carry shoes medially for those with lateral incisions after the line, and lateral shoes 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 and cause wear and tear, such as enthusiastic jumping, fast running, skiing, water skiing, tennis, etc. The above post-operative care methods for artificial hip replacement should be noted by patients and their family members who have undergone replacement surgery. If you can do these things in life, it will help a lot to prolong the life of the prosthesis and delay the arrival of revision surgery.