Cerebral atherosclerosis is a group of common diseases in which atherosclerosis of cerebral arteries leads to a general decrease in cerebral blood flow and secondary damage to the brain parenchyma, resulting in extensive brain dysfunction. The main manifestations are widespread cerebral neurological dysfunction, such as neurasthenia syndrome, cognitive dysfunction, pseudomyelitis and other chronic cerebral ischemia syndromes. Cerebral atherosclerotic neurological syndrome, manifested by dizziness, headache, fatigue, drowsiness, inattention, memory loss, emotional instability, numbness of the limbs, etc. Cognitive dysfunction: mainly manifests as memory, comprehension, calculation and other intellectual impairment. Pseudobulbar palsy syndrome: The main manifestations are dysarthria, dysphagia, dull facial expressions, involuntary crying, laughing, slow clumsy gait and stumbling, and most patients have varying degrees of dementia. Fundus examination and radial artery examination may show varying degrees of atherosclerosis, usually accompanied by increased blood pressure and blood lipids. Isotope cerebral hemogram and cerebral perfusion imaging can show reduced blood flow to the whole brain, and diffuse cerebral atrophy and cerebral white matter lesions are common on head CT. Cerebral arteriosclerosis is mostly seen in the elderly, and attention should be paid to exclude chronic intracranial lesions such as brain tumors and chronic infections, as well as brain symptoms caused by systemic diseases, and to exclude Alzheimer’s disease and senile psychosis when there are obvious mental disorders.