Most people with coronary heart disease cannot be cured with treatment. Treatment can improve quality of life, improve healing, and reduce the risk of serious cardiovascular events. Coronary heart disease has a complex etiology and is the result of a combination of factors, so it is difficult to completely eradicate, but clinical cure can be achieved through treatment. It can relieve patients’ clinical symptoms, reduce the risk of serious cardiovascular events and improve the quality of life. Mild coronary heart disease is mainly treated by preventing risk factors with medication. Prevention of risk factors mainly includes abstinence from smoking and alcohol, low-salt and low-fat diet, weight control, appropriate physical exercise, and control of blood pressure, blood lipids and blood glucose. Pharmacological treatment mainly includes the application of antiplatelet aggregation drugs such as aspirin, lipid-lowering plaque-stabilizing drugs such as atorvastatin, and drugs to improve the blood supply to the coronary arteries such as isosorbide nitrate. If coronary artery disease is more serious, percutaneous intracoronary stent implantation or coronary artery bypass grafting is required. After the surgery, patients still need to take the above medications and pay attention to the prevention of risk factors. Patients with coronary artery disease need to follow the doctor’s instructions to take standardized medication, regular review, and actively control the risk factors, and if there is any discomfort, it is necessary to consult a doctor in a timely manner.