The effectiveness and importance of rehabilitation training for the overall treatment of cerebrovascular disease has been internationally recognized. After rehabilitation, about 60% of stroke patients can achieve self-care of daily living activities by the end of the first year, 20% need some help, 15% need more help, and only 5% need all help. Early rehabilitation is very important to prevent complications, prevent secondary disorders, suppress abnormal reflex activity, re-establish normal motor patterns and improve function. Specifically, the following five aspects: 1. It can promote the plasticity and reorganization of damaged brain function Stroke causes local brain tissue to be damaged, so that its function cannot be effectively performed. However, the human brain has a high degree of plasticity and reorganization ability, that is, the brain can be replaced by other parts of the damaged brain tissue through various forms to exercise its original function. This plasticity and reorganization ability is closely related to rehabilitation training. The earlier and more adequate the rehabilitation training is, the more obvious the recovery of damaged brain function is. Early rehabilitation training can increase the input of sensory information, promote the establishment of neural collateral circulation and neural axon synaptic connections, and reshape and reorganize the functions of the damaged cerebral hemispheres. 2. Prevention of disuse syndrome and misuse syndrome Disuse syndrome refers to a series of symptoms such as muscle atrophy, joint contracture, pulmonary infection, decubitus ulcer, deep vein thrombosis, constipation, decreased pulmonary function, postural hypotension and mental retardation in patients who have been bedridden for a long time, or whose activities are inadequate and have reduced stimulation of various kinds. In acute stroke patients, muscle atrophy, joint contracture and deformation, bone decalcification and osteoporosis, lower blood pressure, bed-ridden elderly patients, and decline in cardiovascular function and mental will are usually seen after 2 weeks due to inability to exercise. It has been observed that after stroke, the proximal muscles of the lower limbs on the paralyzed side atrophied 20% and the distal limbs atrophied 16% within 2 weeks after hospitalization, and the atrophy could reach 50% to 70% by the eighth week. The rate of atrophy was rapid and heavy, while those who started rehabilitation early had 5% to 10% atrophy in the second week and then began to recover, and by the eighth week there was no significant difference in the area of muscle discontinuity from that at the time of admission. Most manifestations of wasting syndrome can be prevented with aggressive rehabilitation. However, if manifestations of wasting syndrome have already occurred, aggressive rehabilitation will only partially reverse the wasting manifestations. Disuse syndrome is an artificial syndrome caused by incorrect (wrong) exercise or treatment. Commonly seen in stroke patients are: damage to ligaments, tendons and muscles due to incorrect placement of limbs and joints and unreasonable exertion after the onset of stroke, deformation of bones and joints, increased spasticity, increased imbalance between strong and weak muscles, and the formation of a “circle” gait and “basket” in the upper limbs. “If the correct training is started in the early stage of the disease, the occurrence of such abnormal performance can be completely or partially prevented. 3.Prevent the generation of limb spasm Proper muscle tone is necessary to maintain normal activities, too low or too high (spastic) muscle tone will affect the normal activities of the limb, common movement and joint reaction, and the final result is a spastic posture in which the upper limb is dominated by flexors and the lower limb is dominated by extensors (i.e. Wemnicke. Mann posture), which seriously affects the function of the upper and lower limbs. Therefore, before this spastic posture is created, rehabilitation treatment should be taken to prevent or reduce its occurrence. 4.Prepare psychologically and physically for the recovery period and the posterior period. 5.Shorten the rehabilitation time and reduce the economic expenditure.