However, there is still a small gap between the clinical practice of coronary heart disease and the guidelines for diagnosis and treatment of coronary heart disease, which is reflected in the following: patients are not managed in a standardized way after they are discharged from the hospital when they are well; they are relaxing the lifestyle taught during their stay in the hospital; their compliance with medication is also reduced, especially they reduce or even stop some medications to improve their prognosis on their own; The presence of suspicious symptoms does not attract attention or timely consultation; elderly patients with mobility problems, neglecting follow-up, etc. The above factors are not conducive to the prognosis of patients with coronary heart disease. Comprehensive community interventions can not only reduce the risk factors of coronary heart disease, but also reduce the incidence of cardiac events and death rate of patients with coronary heart disease. Patients with stable coronary artery disease who have been treated in tertiary hospitals should be included in community-based chronic disease management, and should be treated with long-term follow-up and condition monitoring in community hospitals, and then referred to tertiary hospitals for coronary angiography or revascularization if signs of unstable lesions appear. I. Clinical characteristics of chronic stable coronary artery disease and community management goals: Chronic stable coronary artery disease includes patients with clearly diagnosed coronary artery disease without angina symptoms and patients with stable angina. Patients with chronic coronary artery disease usually show symptoms mainly as episodes of stable angina, which are caused by myocardial ischemia due to increased activity or oxygen consumption. It is often rapidly relieved by rest or sublingual nitroglycerin. The following criteria need to be met for stable angina: no change in the frequency, duration, precipitating factors, or mode of relief of anginal attacks in the last 60 days, and no basis for recent palpitation injury. The primary goal of treatment of chronic stable coronary artery disease is to prevent myocardial infarction, heart failure and death, thereby prolonging life expectancy, and the secondary goal is to improve quality of life by alleviating angina symptoms and reducing the occurrence of ischemia. The main contents of its community management include: 1. promoting healthy lifestyle, long-term maintenance of standardized treatment plan for coronary heart disease, avoiding interruption of treatment leading to cardiovascular events. 2. monitoring the effect of drug treatment and adverse reactions. 3. monitoring the stability of patients’ coronary lesions, and promptly referring patients if signs of unstable lesions appear. Community management of risk factors for coronary heart disease: Risk factors for coronary heart disease include: age, smoking, diabetes, hypercholesterolemia, hypertension, family history, and poor lifestyle. When these risk factors are present together, a synergistic effect can occur to increase the risk of coronary heart disease. Anxiety, depression, and emotional agitation are often the triggers for coronary heart disease. Except for age and genetic factors, most of the risk factors affecting its development are modifiable, and blood pressure and blood sugar should be controlled within reasonable limits. Dyslipidemia is related to diet, so it is important to eat less animal fat and consume a low-fat diet rich in fruits and vegetables. It is recommended to consume less than 5g of salt daily and limit alcohol intake, as well as to quit smoking, strengthen exercise, control weight, be calm and channel bad emotions. The benefits of exercise in patients with chronic stable coronary artery disease far outweigh the risks. The incidence of serious cardiovascular events during guided progressive rehabilitation exercise is very low, about 1 case in 117,000 person-hours, and most patients do not require medical supervision during moderate amounts of exercise. Smoking increases cardiovascular mortality by 50%, and the benefits of smoking cessation are seen in the first few months. Patients with confirmed coronary heart disease are often more likely to be aware of the dangers of smoking, and this is a great time to urge cessation.