Objective To discuss the indications, methods and potential complications of endovascular stent placement for stenosis of internal carotid artery (ICA). Methods Symptomatic with ICA stenosis greater than 50%, and asymptomaticwere with ICA stenosis greater than 70% were selected. Self-expanding stent were used in extracranial ICA. Results 40 patients were inplaced 48 stents. All patients had no complications during and after operation. Each case was succssful at instant agiograph. Follow-up X-ray and sonography showed no distortion, movement of stents and restenosis. Conclusions Endovascular stent angioplasty was a safe, effective for stenosis of extracranial ICA. How to prevent complications occur including the embolic particles and restenosis must be studied deeply.