Cardiac insufficiency is not self-healing and must be treated with pharmacological intervention or intervention. Insufficient blood supply to the heart refers to ischemia and hypoxia or necrosis of the heart muscle due to narrowing or blockage of the coronary arteries. It manifests as chest tightness and chest pain. Previously, according to the location and extent of coronary artery lesions, the degree of vessel obstruction and the speed, extent and degree of development of myocardial blood supply deficiency, there are five clinical types: asymptomatic coronary artery disease, angina pectoris, myocardial infarction, ischemic cardiomyopathy, and sudden death coronary artery disease. Angina pectoris and myocardial infarction are the common types. Mild cardiac insufficiency usually presents as an angina attack. Angina symptoms can be relieved by rest or medication. When rest or medication is taken, the coronary arteries dilate, perfusion is restored, and the patient’s myocardial cells are able to reversibly recover from ischemia and hypoxia. The symptoms of angina can be relieved. However, if the direct cause of myocardial ischemia cannot be removed, only the symptoms can be relieved but not cured. Severe cardiac insufficiency is usually manifested as a heart attack. Due to prolonged myocardial ischemia and hypoxia, myocardial cells have become necrotic, and it is impossible to restore function even if blood perfusion is restored. The most common cause of insufficient myocardial blood supply is coronary artery disease. Since atherosclerosis and stenosis already exist in coronary arteries, this cause is difficult to be eliminated by drugs, therefore, treatment can only control the progress of the disease and relieve the symptoms, much less cure itself.