Cerebral atherosclerosis mainly causes chronic cerebral ischemia, which in turn leads to the decline of brain function, generally with insidious onset and slow development, and should be given sufficient attention. On the one hand, it can improve cerebral circulation and promote brain metabolism to improve brain function; on the other hand, it is necessary to actively control the risk factors of atherosclerosis and prevent disease progression. To improve the symptoms: cerebral atherosclerosis will lead to the decline of cerebral blood supply, treatment firstly, use drugs to improve cerebral circulation, mainly calcium antagonists such as nimodipine and flunarizine; cerebral vasodilator drugs such as nimeglumine and Chuanxiongzine, etc. For those with declining cerebral function, use drugs to promote cerebral metabolism, such as aniracetam and staphylococcus aureus; patients with carotid atherosclerosis lesions can use antiplatelet drugs, such as aspirin In patients with carotid atherosclerosis, anti-platelet agents such as aspirin, clopidogrel, and clopidogrel can be used. Preventive treatment: Prevention should be the main focus of this disease, actively control the risk factors of atherosclerosis include: control of low-density lipoprotein-based lipid-lowering therapy, the choice of statin lipid-lowering drugs, statin is the most important drug for anti-atherosclerosis treatment. Control hypertension and treat it up to the standard; regularly monitor blood sugar and effectively control diabetes; improve lifestyle, quit smoking and limit alcohol, increase outdoor exercise, reduce weight, have a balanced diet and maintain psychological balance, etc. The initial symptoms of cerebral atherosclerosis are not obvious, and the symptoms of neurological impairment caused by chronic cerebral insufficiency are scattered and atypical, which can be easily ignored.