Coronary heart disease is a chronic disease that is relatively common in the middle-aged and elderly population. Coronary heart disease is coronary atherosclerotic heart disease, endothelial lipid deposition, plaque formation, blockage of blood vessels, resulting in blockage of blood flow to the distal end of the blood vessels to reduce or interrupt, resulting in ischemia or necrosis of the myocardium, clinical manifestations of angina pectoris or myocardial infarction. If there is frequent chest tightness, dizziness, chest pain, etc. to consider whether there is coronary artery stenosis or infarction, it is necessary to consider doing coronary angiography to determine the degree of coronary artery stenosis, if the coronary artery is blocked more than 70% need to consider interventional therapy, such as stent implantation or thrombolytic therapy, to avoid emotional excitement, to avoid fatigue, to maintain a stable state of mind. In daily life, it is recommended to adjust work and rest, control diet, maintain a low-fat and low-cholesterol diet, and limit the intake of sucrose and sugary foods. Eat a light diet rich in vitamin C and vegetable protein, and try to use vegetable oil as cooking oil. If the above symptoms occur, it is recommended to go to a regular hospital for examination and cooperate with the doctor’s treatment.