Rehabilitation can be carried out one month after thigh fracture intramedullary nail fixation surgery, which includes hip and knee mobility training, muscle strength and endurance training, and physical therapy. Thigh fracture intramedullary nail fixation surgery can be carried out within 48 hours after surgery as long as the patient’s general condition is stable and there is no abnormality in the internal fixation, the acute phase of rehabilitation can be carried out within 48 hours after surgery. Joint range of motion, increased muscle strength training, and restoration of muscle coordination can be gradually restored one month after surgery. Knee mobility training: carry out passive and active joint mobility training for ankle, knee and hip joints until full joint range of motion is restored. Muscle strength and endurance training: isometric contraction of the anterior and posterior thigh muscles, and gradual transition to increase the intensity of muscle exercise. Physical therapy: pulse electromagnetic therapy, low-intensity pulse ultrasound, and electrical stimulation can be used in conjunction with the rehabilitation training, and attention should be paid to the placement of electrode tablets to avoid metal internal fixation. Thigh fracture intramedullary nail fixation surgery rehabilitation therapy needs to be strictly in accordance with the guidance of the rehabilitation doctor, to avoid delaying the timing of rehabilitation or blind training.