Atheromatous plaque in the subclavian artery is abnormal, and the larger the plaque, the more serious the danger, and should be actively treated. Normal subclavian artery should not appear plaque, with the gradual increase of age, such as with blood fat, blood sugar, blood pressure and other abnormalities, can lead to subclavian artery plaque, plaque will gradually increase in size, serious can lead to subclavian artery stenosis, and even have the risk of occlusion. If plaque occurs in the subclavian artery, we should pay attention to find the risk factors, limit the intake of high-fat food, quit smoking and drinking, and control the blood pressure, blood sugar and blood lipids, so as to avoid further enlargement of the plaque in the subclavian artery. And regular ultrasound examination, for plaque larger patients, need oral statin drug treatment, such as atorvastatin, resuvastatin, etc.. Patients with subclavian artery plaques should go to the hospital in time to assess the risk under the guidance of the doctor and be given medication if necessary.