The main methods of muscle atrophy recovery are: i. Microsurgery. Including nerve and vascular muscle bundles implanted in the atrophied muscle, as well as nerve end-lateral and lateral anastomosis techniques. Second, physical therapy. Passive limb activities can promote muscle blood circulation, reduce intertissue edema, facilitate nutrient exchange within the muscle, keep the muscle somewhat elastic, prevent joint stiffness and atrophy, provide good muscle and joint function for regenerated nerve fibers to reach target organs. Functional electrical stimulation can increase muscle endurance and improve the functional state of muscle cells. Third, drug therapy. Local injection of insulin-like growth factor 1 into atrophied muscles can improve the regeneration of damaged muscles.