Femoral intertrochanteric fracture is a common osteoporotic bone in the elderly. A hip pain after a fall in an elderly person over 70 years old is likely to have occurred. The difficulty in the management of this fracture is that the elderly are often combined with various medical conditions and have poor surgical tolerance. If conservative treatment is chosen, bed rest traction is required for at least 2 months, and bed rest complications such as pneumonia and decubitus ulcers are more common in the elderly, and their physical function can deteriorate rapidly due to inactivity. At present, aggressive surgical treatment is generally recommended. The most advanced treatment method is internal fixation with intramedullary nail, which is firmly fixed and has small incision. However, a significant percentage of hospitals in China still use the backward extramedullary fixation method, which has a large incision and slow recovery, and there are even many hospitals that use artificial joint replacement to treat intertrochanteric fractures. The proximal anti-spin intramedullary nail is used to treat the intertrochanteric fracture, which preserves the structure of the femur and is firmly fixed. The surgery is less invasive, with three incisions of 2 cm, 2 cm, and 1 cm, respectively, and takes about 40 minutes to perform, and the patient can walk out of the hospital in 3-5 days.