Carotid artery stenting is the most common treatment for carotid stenosis. Her main cost is about 50,000-60,000 RMB, which mainly includes the treatment fee, the catheter and guidewire used in the operation, and the cost of the umbrella. Carotid atherosclerosis is the manifestation of circumferential atherosclerosis in the carotid artery, and the incidence is increasing, mainly because of the improvement of people’s living standard and the aging of the population. Atherosclerosis is the deposition of atheromatous plaque in the intima of arteries, forming arterial stenosis can cause distal ischemia; if the plaque is dislodged it can cause cerebral infarction, embolism of distal limbs, etc. It should be closely monitored, and if the stenosis exceeds 50% and there are obvious clinical symptoms, or if the stenosis exceeds 70%, even if there are no clinical symptoms, it is necessary to go to the local hospital for further examination and, if needed, stenting may be performed.