The purpose of amputation is to restore the function of the limb or finger. In addition to the correct suturing of nerves and muscles during surgery, early and appropriate functional training after surgery is the main measure to restore the function. Generally, you can start to move the joint passively after surgery. I. Early postoperative rehabilitation focuses on reducing swelling, anti-inflammation, softening the scar and loosening the adhesions through various physical treatments. Therefore, during the functional recovery period, the injured person should overcome the fear of pain and actively carry out functional training through protective passive movement and light active flexion and extension training under the guidance of a physician. Second, mid-term postoperative rehabilitation The focus is to release the fixation and prevent joint stiffness. 4-6 weeks after surgery, 48 h after removal of the kyphosis needle, through occupational therapy, the use of CMP, under the guidance of the rehabilitation physician or rehabilitation therapist to increase the active training, so that the tendon adhesions are initially released. Perform active flexion and extension exercises of the interphalangeal and metacarpophalangeal joints, finger-to-finger and metacarpal exercises. The active exercise should be gentle and slow, gradually increase the strength, when the limit angle is reached, hold for 10 min to 20 min, and so on repeatedly extend and flex. The amplitude of movement should be from small to large, with each activity lasting 10 min~20 min, 3 times~4 times a day at the beginning of the exercise period, and then increase the number of times and activity time to 30 min each time, 6 times a day, daily or weekly. Third, late postoperative rehabilitation The focus is to improve the comprehensive index of hand function through high-intensity training and finger skills and dexterity training. The injured finger exercises include activities of the palm and fingers in all directions, as well as palm to palm, finger to finger, fist clenching and fist extension. Focus on training the flexibility, coordination and precision of the injured finger movements, and practice grasping, pinching and gripping. In daily life, the patient should try to take care of himself as much as possible. Without affecting the healing of the fracture, gradually increase the range and number of activities, and train the finger strength with tools such as screws and nuts. Control of the amount of exercise Exercise produces slight pain in the injured finger, which can be made to disappear by resting before the next exercise. The degree of exercise of the joint is measured by reaching the maximum amplitude before exerting appropriate force or making the joint area feel tense or slightly sore.