The heart is the center of human blood circulation, the heart itself has its own artery to supply enough blood to ensure its normal operation, this artery is called the coronary artery. Because of various reasons caused by the body’s metabolism is not normal, a variety of high-fat substances accumulate in the blood vessels, the gradual formation of atherosclerotic plaques in the blood vessel walls, accumulation in the coronary artery lining, over time, so that the coronary artery lumen more and more narrowed or blocked, resulting in reduced myocardial blood flow, decreased oxygen supply, myocardial ischemia and even infarction necrosis, a series of changes in the lesions are known as coronary atherosclerotic heart disease, referred to as coronary artery disease. This series of lesions is called coronary atherosclerotic heart disease, coronary heart disease. Prevention of coronary heart disease can be prevented by two prevention strategies, one for the whole population and the other for high-risk groups. The former is by changing a population, region or country and coronary heart disease risk factors related to lifestyle habits, social structure and economic factors, in order to reduce the average value of risk factors in the population; the latter is recognized as having one or more (such as hypertension, smoking, etc.) and coronary heart disease has a clear causal relationship with the reduction of the level of risk factors, in order to effectively reduce the occurrence of coronary heart disease. Currently recognized risk factors for coronary heart disease include men, middle-aged and older people over 40 years of age, a family history of premature coronary heart disease, smoking (now smoking > 10 cigarettes / day), hypertension, high blood cholesterol, severe obesity (overweight > 30%), there is a clear past history of cerebrovascular or peripheral vascular obstruction. Of these, hypertension, high cholesterol and smoking are considered the 3 most important risk factors for coronary heart disease. With the exception of gender, age, and family history, all risk factors are preventable and treatable. Coronary heart disease lesions begin in children, and the formation of atherosclerotic lesions is a long process, so it is important to develop good habits and a healthy lifestyle from an early age. Dietary structure should be reasonable, avoid excessive fat intake and a large number of sweets, strengthen physical exercise, prevention of obesity, hyperlipidemia, hypertension and diabetes. Overweight and obese people should take the initiative to reduce calorie intake and strengthen physical activity. Hypertension, hyperlipidemia and diabetes mellitus patients, in addition to the importance of risk factor intervention, it is more important to actively control blood pressure, blood glucose and blood lipids. Treatment of Coronary Heart DiseaseThe treatment of coronary heart disease includes three kinds of methods: medication, endoprosthesis and surgery. Coronary artery bypass grafting, as one of the main treatments for coronary heart disease, is safe and effective, with a surgical success rate of more than 98%. Surgery not only relieves angina pectoris and greatly reduces the incidence of myocardial infarction, arrhythmia, and sudden death, but also greatly improves the quality of life and the ability to move around. Many patients have many doubts about surgical bypass surgery for the treatment of coronary artery disease. In fact, medical stenting has its limitations and is not suitable for all patients, and many patients with coronary artery disease make the wrong choice because they are afraid of surgical treatment. Coronary heart disease in addition to conservative drug therapy, for medical stenting or surgical bypass treatment should be how to choose, recently published & laquo; U.S. unstable angina and non-ST-segment elevation myocardial infarction treatment guidelines & raquo; for patients with the implementation of medical stenting or surgical bypass treatment to provide decision-making recommendations: Song Yi, Department of Cardiac Surgery, Qilu Hospital, Shandong University, Shandong Province, 1, for the left trunk lesions should be performed Bypass surgery 2, single-branch or 2-branch vascular lesions can choose: drugs, stents and bypass therapy 3, three-branch lesions or 2-branch lesions combined with anterior descending branch proximal lesions can choose bypass therapy, if the patient combined with the left heart insufficiency (EF < 50) or combined with diabetes mellitus should be selected bypass surgery. It can be seen that only patients with coronary artery disease with single or 2-branch lesions are more suitable for stenting, while any type of patients can benefit from bypass surgery, especially patients with 3 or more lesions combined with cardiac insufficiency and diabetes mellitus are the indications for bypass surgery. Therefore, it is important that patients do not make wrong choices for the sake of blind fear of surgery and delay the best time for surgery. Of course, all surgeries have risks, but at present, bypass surgery is already a very routine operation. A large number of case studies at home and abroad have proved that surgical treatment of coronary heart disease patients is more effective than other treatments, and it is advisable to undergo surgery as early as possible.