Vertebrobasilar artery syndrome mainly refers to the reduction of blood flow in the contralateral vertebral artery due to severe stenosis or occlusion of the vessel in one side of the subclavian artery, or the unnamed artery in the proximal end of the vertebral artery, also known as the blood-stealing syndrome. There will be many clinical manifestations, the main manifestation is caused by posterior circulation ischemia, such as manifestation of vertigo, unstable walking, headache, dizziness, and there may be asymmetry of blood pressure in both upper limbs, and timely treatment. In internal medicine, treatment should be given to activate blood circulation and improve blood stasis, which can be improved by sedation, such as Ginkgo biloba extract injection, and also blood plugging, and prostaglandin drugs. In addition, if the degree of stenosis is severe, interventional stenting can be sought.