Lower extremity atherosclerosis-occlusive disease, generally due to the narrowing or occlusion of the lumen of the blood vessels after atherosclerosis of the lower extremities, is clinically manifested as intermittent claudication (some intermittent claudication can also be caused by nerve compression due to lumbar disc herniation), which can be aggravated by resting pain, darkening of the skin of the lower extremities, ulcers or gangrene. Intermittent claudication refers to soreness and pain in the limbs after walking a certain distance, which may be relieved after rest and may reappear after walking again. Intermittent claudication caused by lower limb vascular stenosis can be improved after interventional treatment. The following is a case treated in our hospital, male, 62 years old, with intermittent claudication, walking distance of 100-200 meters, and the symptoms of intermittent claudication improved significantly after interventional treatment. After postoperative anticoagulation and antiplatelet therapy, the ulcer of the left toe healed after 1 week and the patient was discharged.