Once carotid artery stenosis occurs, the brain will be greatly affected, the most direct impact is to trigger a series of cerebral ischemia symptoms, such as dizziness, nausea, fatigue, blurred vision, memory loss and so on, which brings a lot of inconvenience to the patient’s life. Transient ischemic attack (TIA) is also a common clinical symptom of carotid artery stenosis, which generally lasts for a relatively short period of time and can recover on its own. In addition, according to relevant data, about two-thirds of cerebral infarction is related to carotid artery stenosis, and the light type often has sensory impairment of one limb, hemiparesis, aphasia, and cerebral nerve damage, while the heavy type may fall into a coma, and so on. Medication and surgery are the two main treatment modalities for carotid artery stenosis. Medication is generally applicable to mild carotid artery stenosis, while surgery can be used for moderate to severe carotid artery stenosis according to the condition in order to achieve the desired effect. Currently, common surgical procedures for carotid artery stenosis include stent intervention and carotid endarterectomy. Patients often ask, “How to do stenting for severe carotid stenosis? Stent intervention is usually performed under local anesthesia. A puncture is made at the root of the thigh, and a catheter with a diameter of about 2 mm is placed into the femoral artery, which is then transported to the site of carotid artery stenosis, and the stent is released after selecting the right position to complete the expansion of the carotid artery atherosclerosis stenosis site and improve the blood flow supply to the brain. Although this procedure is minimally invasive, simple, fast-acting, and has the advantage of quick recovery, it is also prone to problems such as dislodgment of emboli and re-stenosis. Coming back to carotid endarterectomy, this technique can directly peel off and remove the carotid plaque and diseased endothelium, truly restore the size of the carotid lumen and rebuild the blood flow, with good postoperative recovery, which is an ideal technique for treating carotid stenosis nowadays.