1, do a good job of psychological care: before the operation should be patient endurance of psychological guidance, so that they can establish the courage to overcome the disease. They should be made to understand that they can recover their self-care ability to the maximum extent after amputation by installing prosthesis, so as to obtain their positive cooperation and make good preparations before installing prosthesis. 2.Eliminate the swelling of the affected limb: pay sufficient attention to rest and elevate the distal end of the affected limb before surgery in order to promote blood return and prepare for surgery. 3.Enhance the tolerance of the residual limb: In order to enable the patient to use the prosthesis for a long time in the future, in addition to strengthening the patient’s skin care and keeping the local cleanliness before surgery, sensory stimulation such as tapping, percussion and squeezing can be used to improve the wear resistance of the skin support. 4, enhance the proximal muscle strength of the residual limb: early on, patients should be instructed to perform muscle strength training of the proximal muscles. Prevent contracture of the proximal joint of the residual limb: encourage the patient to carry out active activities of the proximal joint, pay attention to maintaining the functional position of the limb when the limb needs to be fixed, and for those who cannot do active activities, the patient should carry out passive movements of the proximal joint of the affected limb in all axes. 6.Improve the nutritional status of the whole body: give a high protein, vitamin-rich and easy-to-digest diet to improve the nutritional status of the whole body, so as to lay a good foundation for the patient to tolerate the surgery and recover after the surgery so as to carry out rehabilitation training as early as possible. 7.Strengthen the activities of the healthy limb: strengthen the muscle strength of the healthy limb, which is conducive to the function of the prosthesis. 8, upper limb training: amputation training is mainly to increase muscle strength and joint mobility training, if the amputation side is the dominant hand side, then we should carry out the non-dominant hand side “exchange training”, so that after surgery, the healthy side of the hand can complete the hand function. The training starts from daily life movements and gradually proceeds to fine hand movement training. 9.Lower extremity training: Mainly to carry out standing balance training or crutch practice. By doing push-ups and resistance training of the healthy limbs, the upper and lower limb amputations take corresponding special.