Clinically there is no such thing as coronary heart disease prophylaxis, usually after the diagnosis of coronary heart disease, the need for drug prophylaxis. Clinical coronary heart disease medicine is known as coronary atherosclerotic heart disease. Mainly due to coronary artery atherosclerosis, caused by narrowing or occlusion of the lumen, resulting in a contradiction between the coronary blood supply and myocardial hemorrhage, so that the coronary blood flow can not meet the metabolic needs of the myocardium. This usually causes myocardial ischemia and hypoxia, resulting in angina pectoris, and in severe cases, myocardial necrosis, also known as myocardial infarction. At present, there is no relevant injection for the prevention of coronary heart disease, usually need to be in the doctor’s comprehensive assessment after the drug preventive treatment. For example, for stable angina patients with coronary heart disease, they need to take long-term aspirin, atorvastatin and other anti-platelet and lipid-lowering drugs for preventive treatment. Secondly, for patients with stable angina after myocardial infarction, beta-receptor antagonists, such as metoprolol, need to be selected for preventive treatment, which can reduce the occurrence of cardiovascular events. When combined with hypertension, ACEI or ARB drugs need to be selected for preventive treatment. If the diagnosis of coronary artery disease is confirmed, it is recommended to consult the cardiovascular department in a timely manner, and after the doctor’s comprehensive assessment of the condition, the drug preventive treatment is carried out.