Angina pectoris is the most common type of clinical manifestation of coronary heart disease, due to the loss of balance between myocardial oxygen demand and coronary artery supply, resulting in myocardial ischemia and hypoxia and subsequent clinical symptoms. The primary disease that causes angina is more, whether it can be cured depends on the severity of the primary disease and the effect of treatment, the primary disease is good, its cause of angina natural well. The performance of angina is diverse, the patient’s feelings are not the same, there can be “clamp-like”, “crunch-like”, “squeeze-like”” “”burning”, “breath-holding” and so on, and the location is usually behind the sternum or in the precordial region or in the throat. The duration of pain, frequency of attacks, and triggering factors vary depending on the degree of the condition. The vast majority of angina attacks are due to luminal narrowing and/or wall dysfunction due to atherosclerosis of the coronary arteries themselves, accounting for about 90% of cases. Other conditions that can cause angina include: aortic stenosis, hypertrophic obstructive cardiomyopathy, hyperthyroidism, anemia, fever, etc. In other words, any condition that can cause imbalance of coronary artery and myocardial supply and demand can lead to clinical manifestations of angina pectoris. Then the treatment of angina is also the treatment of the primary disease causing angina: treatment of coronary artery disease (drug therapy, coronary revascularization), treatment of aortic stenosis (surgical valve replacement or TAVR surgery), treatment of hypertrophic obstructive cardiomyopathy (drug therapy or ablation surgery, etc.), correction of hyperthyroidism or anemia, etc. Whether or not it can be cured depends on the severity of the primary disease and the drug or surgical The treatment effect. A variety of diseases can cause angina symptoms, but the most common one is angina due to coronary heart disease. Drug treatment includes antiplatelet, lipid regulator to stabilize plaque, beta-blocker to reduce myocardial oxygen consumption, nitrate drugs to dilate coronary arteries to improve myocardial blood supply, trimetazidine or nicorandil to improve myocardial metabolism, calcium channel blocker drugs to improve coronary artery spasm, etc. A significant proportion of patients can be effectively improved angina symptoms. It should be noted that after the diagnosis of coronary heart disease and angina is clear, the relevant secondary prevention drugs for coronary heart disease need to be taken for a long time, and regular outpatient follow-up.