Which is better, bypass or stent, is not a simple generalization, but depends on the patient’s condition and the location of the lesion, and the physician’s advice to choose the final treatment plan. Coronary artery bypass grafting is a surgical procedure in which a grafted vessel (often the saphenous vein and internal mammary artery) is used to create a vascular pathway in the aorta and distal to the obstructed coronary artery. It is used to repair or replace an obstructed coronary artery to improve blood supply to the heart muscle. Bypass surgery can resolve multiple lesions in a single procedure, and has a better long-term prognosis than coronary stenting, especially for patients with diabetes mellitus and combined renal insufficiency. Cardiac stenting is a minimally invasive interventional procedure. The advantage of stenting is that it is less invasive and faster recovery for the patient. Cardiac bypass surgery and cardiac stenting are both surgical procedures to address severe narrowing of the coronary arteries, and are options for treating different periods of the disease, there is no superiority or inferiority, the specific need to use which technology should be based on the judgment of the attending physician’s opinion.