Migraine and cerebral insufficiency of blood supply belong to two different diseases, which are different in their causes and symptoms. Migraine is a chronic neurovascular disease, and the causes of migraine are still not completely clear, mainly related to genetic, dietary, endocrine, environmental and mental factors. Typical manifestations of migraine are recurrent one-sided or bilateral throbbing severe headache, which may be accompanied by nausea, vomiting, photophobia and phonophobia. Insufficient cerebral blood supply refers to a decrease in the blood supply to the brain, mainly due to narrowing or blockage of the channels through which blood enters the brain, such as narrowing of the vertebral arteries due to cervical spondylosis and narrowing or occlusion of blood vessels due to atherosclerosis. Insufficient blood supply to the brain can manifest itself in a variety of symptoms, common symptoms include dizziness, headache, blurred vision, insomnia, forgetfulness, nausea, vomiting and so on. Both migraine and cerebral blood supply insufficiency may have symptoms such as dizziness, headache, nausea, vomiting, etc. However, they belong to different diseases and their treatments are different, which need professional doctors to diagnose and treat. Prompt medical treatment is recommended for targeted treatment.