Vertebrobasilar artery syndrome is related to stenosis or occlusion of the vertebrobasilar artery. Patients with insufficient blood supply to the vertebrobasilar artery may experience vertigo, vomiting, ataxia or dysphonia, dysphagia, diplopia, crossed paralysis, ocular muscle paralysis, hearing loss, tetraplegia, etc. It is a more serious disease and should be treated actively once diagnosed. The cause of the disease is related to atherosclerosis and proximal stenosis of nearby larger arteries, which can cause a decrease in distal blood supply pressure and can also cause a series of clinical symptoms by reversing the flow of nearby blood vessels. The ischemia and hypoxia caused by arterial stenosis and inadequate blood supply can be treated with vasodilating drugs such as triclopidine and ginkgo biloba, as well as anti-platelet coagulation drugs such as aspirin enteric tablets and statin lipid-lowering drugs, and surgery for more serious symptoms.