For dizziness caused by insufficient blood supply, the improvement methods are as follows: First, it is recommended that patients can apply appropriate drugs to improve blood supply to the brain, such as Ginkgo biloba preparations, cerebral heart clearing tablets, and blood stasis and blood circulation capsules, which can improve blood supply to the brain, and also flunarizine hydrochloride, but it is recommended that patients follow medical advice to take it orally for a short period of time to avoid prolonged oral intake that may cause tremors, etc. Second, for dizziness caused by insufficient blood supply, acupuncture and massage methods can be used, especially acupuncture points of cataract and blood supply points, which are clinically effective in improving the ischemia of the posterior circulation. Third, for dizziness caused by insufficient blood supply, patients can be given intravenous medication if necessary, mainly to improve circulation, vasodilator drugs, such as commonly used drugs, such as poppy bicarbonate injection, which have a very good effect on improving cerebral blood circulation, if necessary, the application of proprietary Chinese medicine, such as ShuXinNing.