Congenital cerebral vascular stenosis is a relatively rare congenital vascular malformation, which is a major cause of ischemic cerebrovascular disease. Cerebrovascular malformations are mainly differentiated into arterial or venous vessels, major or side vessels and the degree of cerebrovascular malformation, and different cerebrovascular malformations produce different clinical symptoms. If it is arteriovenous malformation, mild malformation is usually not obvious, usually found in the relevant examination, should pay attention to the protection of blood vessels after discovery, quit smoking, limit alcohol, light diet, less oil, less salt, generally do not need drug treatment, close observation can be. Moderate and severe vascular malformation will have cerebrovascular ischemia manifestations, such as dizziness, headache, vertigo, tinnitus, unsteady walking, and in severe cases, affecting consciousness, blindness or double vision, one side of the limb weakness or even hemiplegia and other symptoms, this situation usually requires medication and surgery.