The approach to stenting for cerebral infarction must be specific to the situation at the time, as each stent may make to a different surgical approach. Generally, carotid artery stenting is done most often, with the patient lying flat on top of the imaging machine, a sheath is punctured at the root of the thigh, a guidewire and catheter are delivered through the sheath and placed at the opening of the carotid artery, a very thin guidewire is used to guide the balloon for proper dilatation, slowly the vessel appears to be relatively wide, and then the stent is used for expansion, basically the procedure can be done, and the middle cerebral artery stent, the basilar artery stent are all done in this way, Basilar artery stenting is done in this way. In the case of stenting of the vertebral artery, the guidewire usually leads the stent directly to the stenosis and covers the stenosis directly by the expansion of the balloon, so the procedure is different for each place and must be judged according to the situation.