Ischemic necrosis of the femoral head has become a common bone and joint disease today. It is also one of the most talked-about diseases. If not detected and treated in time, the disability rate is extremely high, seriously endangering the health of patients. There are many ways to treat osteonecrosis of the femoral head according to the stage of the disease. According to the literature review and analysis, the efficacy of medical drugs and biophysical therapy in the treatment of osteonecrosis of the femoral head is still inexact, and more research is needed in the long term. Surgery is the gold standard for the treatment of osteonecrosis of the femoral head. ”Both patients and doctors hope to preserve their own femoral head by seeking a safe and effective method for osteonecrosis of the femoral head. Through continuous research and efforts, the hip and joint department of Guangzhou Orthopedic Hospital now carries out “minimally invasive” femoral head decompression + lesion scraping + autologous bone grafting to treat early femoral head necrosis with good clinical results. The procedure is performed with the help of special tools to achieve “minimally invasive” treatment of early-stage femoral head necrosis through four steps: “guide needle positioning – open hole decompression – lesion scraping – autologous bone backfill”. Femoral head necrosis. Needle localization: It can accurately locate the center of the lesion and reduce trauma, which is the prerequisite for targeted cleaning of the lesion and adequate compression of bone graft. Decompression: Decompression therapy is used more often in patients with early-stage femoral head necrosis. The basic principle is to reduce the pressure in the femoral head by opening a channel in the femoral head to restore blood flow and improve pain symptoms. Israelite et al. found that only 38% of patients ultimately required arthroplasty in a 2-year follow-up study of 276 cases of hip osteonecrosis after decompression. Lesion scraping: “No dead bone is removed, no new bone is created”, using special tools to thoroughly scrape away necrotic bone tissue from the femoral head. This provides a good bone bed for subsequent implantation of bone tissue. Autologous bone backfill: We take our own iliac bone implant, considering that the iliac bone can provide enough cancellous bone on one hand, and on the other hand, it can economically save a medical cost for the patient compared to allogeneic bone.