Following the rapid development of China’s economy and the wheel, just two or three decades, coronary heart disease is not weak to enter the urban and rural residents of China’s disease spectrum of the most “advanced” ranks, is now far more than the incidence of cardiovascular diseases such as coronary heart disease, hypertension, and congenital heart disease, occupying the first place in the outpatient clinic and hospitalization, and has become the number one cause of death of China’s residents. And has become the number one killer of the cause of death in China. Therefore, now and in the future for a long time, people pay a heavy price and life at the same time, must rethink and seriously treat coronary heart disease. First, the overview of coronary heart disease coronary heart disease, the full name is called coronary atherosclerotic heart disease, refers to the supply of the heart itself coronary artery wall formation of atherosclerotic plaque, resulting in lumen narrowing, occlusion caused by myocardial dysfunction and / or organic lesions. To date, its etiology is not fully understood. However, according to epidemiological studies, it is a multifactorial disease, and some people have summarized that there are as many as two to three hundred factors related to it. Second, the classification of coronary heart disease and clinical symptoms World Health Organization (WHO) will be divided into five categories of coronary heart disease. That is, angina type, myocardial infarction type, asymptomatic myocardial ischemia type, heart failure and arrhythmia type, sudden death type. Thus, the more typical coronary artery disease has episodes of chest pain or chest discomfort. This is due to the occurrence of vasospasm or rupture of diseased plaque on top of coronary artery disease, which induces thrombosis and leads to increased narrowing or occlusion of the lumen. If the myocardial ischemia caused by the contradiction between myocardial blood supply and blood demand occurs temporarily, it can be relieved within a short period of time, which is clinically manifested as angina pectoris; if it can not be relieved for more than half an hour, then myocardial infarction will occur. For chronic myocardial ischemia, generally due to chronic fixed stenosis or occlusion of the coronary artery, the heart will gradually adapt or side branch to establish blood supply partially compensated, so that the symptoms are not serious, or even asymptomatic. Of course, there are some cases that may present other manifestations, such as pain or discomfort in the upper abdomen, left shoulder, left submandibular, etc.. Therefore, you can’t judge coronary heart disease just by the presence or absence of precordial pain. Third, coronary heart disease diagnosis and examination In addition to electrocardiogram, electrocardiogram load test, nuclear myocardial imaging, cardiac ultrasound and cardiac enzymology examination, in recent years intravascular ultrasound, 64 or 128-slice spiral CT imaging technology is also used as a means of screening for coronary heart disease. Coronary angiography is still the current gold standard for confirming the diagnosis of coronary artery disease and is the yardstick for choosing treatment. Coronary heart disease treatment and its principles Improve the blood supply of coronary arteries, reduce myocardial oxygen consumption, while treating and preventing the further development of atherosclerosis, prevention and treatment of coronary heart disease complications. According to the specific conditions of patients, different treatment methods are adopted, including drug therapy, reperfusion therapy (medical thrombolysis, interventional therapy and surgery) and end-stage heart transplantation and so on. V. Coronary heart disease prevention Prevention is more important than treatment. But it is precisely the prevention that is the most unappreciated. China can be the latest international guidelines for clinical use, but also the most advanced treatment technology for clinical use, but for patients and the existence of coronary heart disease risk factors of patients without the onset of health education is seriously lagging behind, so that many people on the understanding of coronary heart disease only stays at a very primary level, sub-healthy or the existence of susceptible to the existence of risk factors of the population will not consciously do a good job in the primary prevention of a clear coronary heart disease patients will not take the initiative to cooperate with the doctor for secondary prevention, ignoring the importance of prevention of coronary heart disease. Patients with clear coronary heart disease will not take the initiative to cooperate with their doctors for secondary prevention, and will neglect long-term medication or lifestyle treatment. It is not too late to resume prevention, and it is absolutely beneficial and meaningful to strengthen prevention at any stage.