A subcapital femoral neck fracture is a fracture that occurs below the femoral head, with the corresponding site closer to the bone, causing damage to the surrounding blood vessels. Subcapital femoral neck fracture is the most common type of femoral neck fracture in clinic, mainly belonging to the closest position to the femoral head, and the corresponding part is above the joint capsule. Because of the corresponding position, the blood vessels around the blood supply is relatively small, once the fracture occurs, it will damage the blood supply artery, which will easily cause poor healing of the fracture, or even ischemic necrosis of the femoral head. After the discovery of the corresponding location of the fracture, timely medical observation, according to different ages, choose different treatment programs.