Coronary artery disease is a disease in which the coronary arteries are narrowed by more than 50%, causing myocardial ischemia and hypoxia, with angina pectoris as a common symptom in clinical practice. The most fundamental treatment of coronary artery disease is divided into the following aspects: 1, anti-atherosclerosis, protection of vascular endothelium, commonly used drugs are aspirin, clopidogrel and statins; 2, dilate coronary arteries, improve myocardial ischemia, commonly used drugs are isosorbide mononitrate; 3, timely coronary angiography, clarify the degree of coronary artery stenosis, if the stenosis exceeds 75%, it is recommended to perform stent implantation If the stenosis is more than 75%, stenting is recommended. If the stenosis is less than 75%, oral medication should be taken, mainly herbal medicine to activate blood circulation, such as Danshin Drip Pill and Qishen Yiqi Drip Pill;