Ischemic strokes account for more than 70% of all strokes. Ischemic stroke and transient cerebral ischemia due to atherosclerotic stenosis in intracranial arteries are important causes of patient morbidity in China. Studies have shown that patients with severe cerebral artery stenosis with a stenosis rate of more than 70% have poor outcomes with pharmacological treatment; traditional surgical treatment is highly invasive and has a high complication rate; whereas cerebral artery stenting is a minimally invasive treatment method, and some patients with severe cerebral artery stenosis can significantly benefit from stenting. Application of intracranial cerebral artery stenting. During cerebral artery stenting, a catheter is inserted into the patient’s femoral artery to deliver the stent to the stenosis site of the cerebral blood vessels, and then the stent is released to prop up the narrowed lumen and restore the blood to normal for the purpose of improving cerebral blood supply and preventing stroke. Because of the tortuous and delicate cerebral vessels and the different functions of brain tissues in different areas, stenting requires rich clinical experience and skillful interventional techniques.