Exertional angina is a symptom of insufficient blood supply to the heart due to plaque instability that occurs as a result of progressive deterioration of stable angina due to gradual worsening of symptoms in the recent past, manifesting as symptom attacks with light physical exertion or even at rest. The attack is characterized by retrosternal pain and chest tightness, which lasts longer than stable angina, but usually does not exceed half an hour. Patients may have pallor, nausea, sweating and other symptoms during the attack, which will be relieved by nitroglycerin, however, the relief time will be longer than before. The treatment of angina pectoris mainly includes medication and coronary intervention. The main medications are antiplatelet drugs such as aspirin and hydroclopidogrel. The medications for plaque stabilization and lipid regulation, such as statin lipid-lowering drugs. If the patient’s symptoms do not improve after strict medication, coronary angiography is recommended, and if the stenosis is greater than 75%, stenting is recommended to improve the symptoms.