Coronary heart disease is a preventable, treatable and controllable disease, but not a reversible disease. Coronary heart disease is a chronic disease and there is no way to cure it once it occurs, but through active treatment, coronary heart disease can be kept stable for a long time to avoid serious cardiovascular adverse events and improve the prognosis of patients. The primary prevention of coronary heart disease is mainly to maintain a good lifestyle and control the risk factors of coronary heart disease such as hypertension, diabetes and hyperlipidemia, so as to prevent coronary heart disease. After suffering from coronary heart disease patients should actively improve their lifestyles, such as quitting smoking, light diet, eating more vegetables, reasonable exercise, weight control, etc., to control the risk factors of coronary heart disease and give the standard treatment medication for coronary heart disease for a long time, which can make the coronary heart disease remain stable for a long time.