The slowed blood flow in the vertebral artery is considered to be due to atherosclerosis, which leads to the loss of vascular elasticity and ischemia in the posterior circulation. For the slowed blood flow in vertebral artery, patients can be given oral Chinese medicine to improve cerebral blood circulation, such as Ginkgo biloba, Ginkgo biloba leaflet, blood circulation capsule, brain clearing and rejuvenating liquid, flunarizine hydrochloride tablets, and brain heart clearing tablets. In addition, the patient can be given drugs to improve cerebral circulation, such as shuxin, poppy bases hydrochloride injection, and if necessary, prostilbestrol injection. For the slowed blood flow in the vertebral artery, acupuncture can also be used in conjunction with Chinese medicine, especially acupuncture at the cataract and blood supply points, which is very effective in improving the slowed blood flow in the posterior circulation. Acupuncture can be combined with electroacupuncture.