Through comprehensive measures mainly based on exercise training, we can prevent and control complications, reduce sequelae, promote functional recovery of the affected limbs, give full play to residual functions, adjust psychological status, learn to use assistive devices, guide family adaptation, and strive for patients to achieve self-care and return to society. In addition to the recovery process of brain tissues and vascular lesions (including the establishment of collateral circulation, decreasing edema around the lesion, absorption of hematoma and recanalization of blood vessels, etc.), the functional recovery after the acute period depends on the plasticity of the central nervous system, i.e., the functional reorganization of the central nervous system. Functionalreorganization). The possibilities of functional reorganization include: ipsilateral innervation of the brain, functional transfer, bilateral hemispheric liaison, changes in synaptic reading, synaptic regeneration, and other theories. Functional retraining allows afferent impulses received by receptors to promote the development of functional plasticity in the cerebral cortex, allowing the regain of lost functions. Thus, functional training is the main condition for the functional reorganization of the central nervous system, which is a re-learning process, and the acquisition of a motor skill requires multiple repetitions. 2, functional training principles The four principles of rehabilitation are: early intervention, functional training, comprehensive rehabilitation, and social reintegration. The specific principles of functional training are: mainly to suppress the abnormal and primitive reflex activities, improve the motor pattern and rebuild the normal motor pattern; secondly, to strengthen the weak muscles and strength training. Functional reconstruction training on the affected side is the main focus, and compensatory training on the healthy side comes later. 3. Timing of rehabilitation intervention Correct postural treatment starts immediately after the onset of the disease, passive movement is carried out after the stabilization of vital signs, and functional training starts within a week for cerebral infarction and 2-3 weeks for cerebral hemorrhage.