Cerebrovascular stenosis according to the degree of stenosis and the presence or absence of symptoms to choose different drugs and treatments, and need to pay attention to a light diet, eat less cholesterol-high food. When there are no symptoms and the arterial stenosis is 50%, only aspirin, clopidogrel and other antiplatelet drugs, as well as atorvastatin, pravastatin and other statin drugs can be chosen for treatment. And when there are symptoms or moderate stenosis of the arteries, i.e., stenosis of 50% to 69%, symptoms such as dizziness, headache and hemiparesis may occur, or when the stenosis is more than 70%, vascular stenting is required. In addition carotid endarterectomy may be performed to treat the stenosis, to re-establish blood flow, and to apply antiplatelet drugs and statins. In addition, because cerebrovascular stenosis may be caused by atherosclerosis, so in daily life, patients need to pay attention to reduce egg yolks, animal offal and other cholesterol, as well as fat intake such as fat meat, and pay attention to the diet of light medications need to be used under the guidance of a doctor.