In patients with atherosclerosis, treatment is mainly based on antiplatelet combined with lipid-lowering and plaque-stabilizing therapy. The antiplatelet drugs can be oral aspirin and clopidogrel, and the lipid-lowering and plaque stabilizing drugs can be atorvastatin, resulvastatin and pitavastatin, and LDL should be controlled below 2.6mmol/L as much as possible. If the patient belongs to the high-risk group suffering from myocardial infarction, further lower LDL and control LDL below 1.4 mmol/L. If LDL cannot be controlled to the standard by oral statins alone, combine with oral cholesterol absorption inhibitors, such as ezetimibe tablets. If the patient has severe vascular stenosis, a combination of dual antiplatelet therapy, i.e., oral aspirin combined with oral clopidogrel or tigretol, is required.