The pathological basis of coronary artery disease is coronary atherosclerosis, which is a progressive chronic disease with high morbidity, so coronary heart disease has the characteristic of high recurrence rate. Coronary heart disease prevention includes primary prevention (for people at risk without coronary heart disease disease) and secondary prevention (for people with coronary heart disease), and preventive measures are necessary for both people with coronary heart disease or people at high risk of coronary heart disease. Primary prevention is prevention for people who do not have coronary heart disease. The aim is to prevent the onset and development of atherosclerosis. Although coronary heart disease often develops after middle and old age, its prevention must start at a young age. According to the susceptibility factors of coronary heart disease, primary prevention includes: (1) Control of blood pressure. (2) Rational dietary structure and caloric intake, avoid overweight. Prevention and treatment of hyperlipidemia and reduction of blood lipid levels in the population. (3) Quit smoking. (4)Actively treat diabetes. (5) Drink hard water. Soft water areas need to supplement calcium and magnesium. (6) Avoid long-term mental tension and excessive excitement. (7) Actively participate in physical exercise. Secondary prevention refers to those who have coronary heart disease, control its development and prevent and control complications for better recovery. All measures of primary prevention are very important for secondary prevention. Also avoid the triggers of coronary heart disease attacks, such as full meals, heavy alcohol consumption, excessive fatigue, mental tension, emotional excitement, sudden cold stimulation, etc. When the effect of the above methods is not satisfactory, coronary artery-dilating drugs and beta-blockers with little side effects should be used under the guidance of doctors to prevent the onset and development of coronary heart disease. Once there is an acute attack of coronary heart disease, such as severe angina, you should strictly rest in bed, take coronary artery-dilating drugs immediately, and preferably carry out in situ treatment and send to hospital after the situation is relatively stable. This can reduce the occurrence of myocardial infarction. Gradually start rehabilitation calcination during the recovery period of coronary heart disease. In addition, taking some drugs can also prevent and control coronary heart disease. For example, long-term use of compound salvia drops can prevent and treat coronary heart disease, cardiovascular and cerebrovascular circulatory disorders. This is due to the fact that the drug, in addition to its coronary expansion and cardiac strengthening effect, also has a hypolipidemic and depolymerizing and anticoagulant effect. Aspirin can also be used as an anti-platelet agglutination to prevent atherosclerosis and prevent coronary heart disease.