The treatment of ischemic necrosis of the left femoral head includes non-surgical and surgical treatment. Non-surgical treatment is indicated for non-weight-bearing surface necrosis and for smaller lesions, as well as for adolescent patients, who are more capable of repairing themselves. The femoral head will improve anew as it grows older. For unilateral hip lesions, weight-bearing should be strictly avoided and treatment can be performed with crutches as well as walkers. If both hips are involved at the same time, bed rest or wheelchair. If the hip pain is very severe, traction of the lower limbs can be performed while lying in bed to relieve the pain, and oral Chinese medicine and physical therapy can also be effective. If the ischemic necrosis of the femoral head is severe and conservative treatment does not improve significantly, surgical treatment should be performed, which can include marrow core decompression, bone grafting with vascular tip, osteotomy, and joint fusion. Nowadays, the most common treatment is hip joint replacement surgery. When the acetabulum and femoral head are involved and osteoarthritis is present, total hip joint replacement should be performed, which can significantly improve the patient’s quality of life.