Angina pectoris is a clinical syndrome of acute myocardial ischemia and hypoxia caused by increased myocardial load on the basis of coronary artery stenosis. Chronic stable angina is the most common clinical type of coronary heart disease in the elderly, typically manifested by anterior chest pain, which can be relieved by rest or nitroglycerin. Drugs for the treatment of angina include the following two types: 1, drugs to relieve symptoms: representative drugs are nitrate drugs, commonly used nitroglycerin, nitroglycerin fast-acting, sublingual and spray two types of nitroglycerin 0.3-0.6mg sublingual, 1-2 minutes to take effect; isosorbide mononitrate, is a long-acting agent, can reduce the frequency and degree of angina, but Calcium channel blockers can reduce symptoms by improving coronary blood flow and reducing myocardial oxygen consumption, represented by diltiazem, verapamil, trimetazidine and nicorandil, which also have similar effects; 2. β-blockers metoprolol, bisoprolol and other drugs, all have a good role in the treatment of angina pectoris. If symptoms remain difficult to control after adequate medication, prompt medical consultation is required and aggressive blood supply reconstruction therapy is considered if necessary.