Surgical bypass surgery can achieve the therapeutic goal of re-establishing normal blood flow in all coronary vessels, effectively relieving symptoms, improving quality of life and improving long-term outcomes. However, the best choice is coronary intervention for patients with combined lung, liver and renal impairment and for elderly patients who are not suitable for surgery and those who have early onset of disease and are unwilling to open the chest prematurely. Coronary intervention, also known as percutaneous coronary angioplasty, is a catheterization technique that refers to the puncture through the femoral artery, sending the balloon catheter into the coronary artery lesion, using the mechanical squeezing effect of the balloon or the supportive effect of the stent to expand the atherosclerotic plaque at the lesion stenosis, so as to increase the inner diameter of the blood vessel and restore the blood flow to normal, thereby improving the blood supply to the myocardium and alleviating the symptoms. After more than 20 years of development, the scope of indications of coronary intervention has been broadened and the success rate is increasing. Due to its advantages of less traumatic treatment, painless, quick recovery (patients can go down to the ground 24 hours after the operation, and can be discharged from the hospital in 3~5 days), repeatability, and other advantages, the therapeutic effect is more reliable and ideal than drugs, and it has become one of the main treatment techniques for coronary artery disease nowadays. However, which treatment plan is suitable for the patient needs coronary angiography to understand the number of diseased blood vessel branches, lesion sites, length, degree of stenosis and various characteristics, and then combined with the patient’s cardiac function and systemic concomitant diseases to comprehensively and comprehensively consider the therapeutic effect and cost, and choose an optimal treatment plan for the patient. However, regardless of the type of treatment, if the patient fails to take lifelong “secondary prevention” after the surgery, it may lead to the reoccurrence of the disease. For the prevention and treatment of coronary heart disease, please remember “ABCDE”: “A” – aspirin and anticoagulant therapy; “B” – beta-blocker and anticoagulant therapy; “C” – anticoagulant therapy; “D” – anticoagulant therapy; and “E” – anticoagulant therapy. “B” – beta-blockers and monitoring and controlling blood pressure; “C” – lipid-lowering therapy and smoking ban; “D” – rational diet and diabetes treatment; “E”-health education and physical activity.