The recovery time for radial nerve injury needs to be based on the extent of the injury. Nerve disuse can usually be fully recovered within 6 months. Nerve axon dissection, the axon needs to regenerate from the injury site to the distal end, the regeneration rate is 1~2mm/day, so it takes longer. Nerve breaks must be surgically repaired, and nerve function can be restored or incompletely restored after surgery. The recovery of radial nerve injury needs to be realized by scientific training under the guidance of doctors and according to the recovery time and stage of the disease. 1. Early rehabilitation: including eliminating the cause of the disease, reducing the damage to the nerve, preventing the occurrence of joint contracture and preparing for nerve regeneration. Apply orthotics, plaster cast to keep the wrist joint in a functional position; at the same time, carry out joint mobility training: complete the full range of motion of the joints actively or with the assistance of the healthy hand, as well as using elevated forearms, elastic bandage packs, massage, ultrashort wave, microwave and other physiotherapy to reduce the swelling. 2. Recovery rehabilitation: the goal is to promote nerve regeneration, maintain muscle mass, enhance muscle strength and promote the recovery of sensory function. Exercise the muscles through myoelectric biofeedback, neuromuscular electrical stimulation, assisted exercise, active exercise and instrumental exercise. Daily life activities training: such as upper limb exercises such as washing face, combing hair, dressing, reaching for objects, etc.; tactile training, vibration training, sensory discrimination exercises. If conservative treatment is not effective, patients should undergo timely surgical treatment, such as nerve release surgery and nerve transplantation. It is recommended that patients with symptoms, timely medical consultation, standardized treatment, so as not to delay the condition.