Nitrates are preferred for stable angina attacks, and antiplatelet drugs, lipid-lowering drugs, and beta blockers are preferred when there are no attacks. If combined with hypertension, diabetes mellitus and other complications, need to target the complications for medication. Nitroglycerin dose 0.5mg per tablet, sublingual, can be quickly absorbed through the blood circulation, the effect is faster. If the patient has persistent angina that cannot be relieved by rest or medication, acute coronary syndrome may be considered. If the pain lasts for more than half an hour, it is a high-risk patient, and emergency surgery is needed to reconstruct the blood flow and reduce the patient’s mortality. Specific medication should be combined with clinical, subject to the guidance of the doctor’s interview.