Arteriosclerosis obliterans ASO is a systemic disease brought on by risk factors such as hyperlipidemia, hypertension, diabetes, smoking, and obesity, mainly involving the distal abdominal aorta as well as the iliofemoral and N arteries, and the later stages of the disease can cause lesions in the main arteries distal to the N artery. Narrowing or occlusion of the lumen of the involved artery leads to chronic ischemic changes in different planes of the lower extremity, which, if left untreated, eventually leads to gangrene and necrosis of the ischemic limb and self-extinction or requires amputation (toe) treatment. Clinically, interstitial claudication is its early symptom, and arterial pulsation at the distal end of the limb is weakened or disappears, accompanied by varying degrees of pain. Later on, resting pain, marked decrease in skin temperature, cyanosis, and even gangrene and long-lasting ulcers of the limb appear. Clinical examination can be done by visual examination, palpation to understand the change of skin color and temperature, and measurement of ABI (ankle-arm index) to understand the vascular condition of the distal segment in general. The main imaging examination is lower limb artery CTA, which is a CT scan of the lower limb arteries within a specified period of time after a certain amount of contrast is injected intravenously, and the vascular images are reconstructed by computer technology to obtain a three-dimensional effect, which is important for understanding the whole picture of the diseased vessels, diagnostic classification (TASCII), and the selection of surgical plan. Drug therapy has long been used for patients with mild symptoms in the early stage, and treatment with vasoactive drugs may temporarily relieve symptoms in the short term. Patients who do not respond well to drug therapy can only be treated with traditional surgical procedures, namely endothelial debridement and vascular bypass. These methods are more traumatic, have a longer postoperative recovery period, and require patency of the inflow and outflow tracts at both ends of the replacement vessel, with the possibility of restenosis of the vascular anastomosis. It is a new minimally invasive treatment method that uses special catheters and guidewires to dilate or recanalize arterial stenosis or occlusive lesions caused by atherosclerosis or other causes under the guidance of large X-ray equipment-DSA. It does not require surgical incision, but only requires puncture and cannulation of the femoral artery or radial artery, and DSA arteriography of the affected limb through a catheter injected with contrast agent. Metal vascular stents, etc., are placed in the diseased segment vessels, and postoperative treatment is supplemented with medication, with a view to achieving a relative long-term patency rate, improving blood supply to the limb, improving symptoms, avoiding or/and reducing the possibility of amputation (toe) or lowering the plane of amputation, and improving quality of life. The entire procedure is performed under local anesthesia, and the patient is completely awake and painless during the operation, and can communicate with the surgeon verbally. The surgical incision is only about 3mm, and no sutures are needed, as long as local pressure bandages are applied. Therefore, the benefits of minimally invasive treatment for atherosclerosis are: less trauma, faster recovery, and better efficacy. However, minimally invasive treatment is not suitable for every patient with ASO and must have certain indications, which need to be evaluated by some preoperative tests, and there is also the possibility of stent restenosis or even occlusion due to excessive intimal hyperplasia. Postoperative standardized drug therapy can reduce this risk, and even if restenosis or occlusion occurs, it can still be reopened by minimally invasive interventions, reflecting the repeatability of minimally invasive interventions. For patients with more serious and difficult conditions, the combined use of interventional minimally invasive treatment and traditional surgery, currently known as “hybrid surgery”, is required to complete the diagnosis and treatment of ASO.