Coronary artery disease is a common and serious cardiovascular disease caused by narrowing or blockage of coronary arteries. In addition to basic medication, revascularization is currently the most effective and important treatment for relieving angina pectoris, prolonging life and saving lives. Revascularization includes interventional stenting and surgical bypass grafting, but which means to use depends on the patient’s clinical condition and coronary artery lesions. It is generally believed that if the stenosis of the ischemia-related vessels is less than 70% and there is no clinical evidence of myocardial ischemia, and if conservative medical treatment has good near- and long-term results, revascularization is not necessary. If the degree of stenosis of ischemia-related vessels is more than 70% and there is clinical evidence of myocardial ischemia, revascularization is significantly better than conservative medical treatment in relieving patients’ angina symptoms, and it can also further improve patients’ immediate and long-term prognosis. Interventional stenting refers to the cannulation of the radial artery of the upper limb or the femoral artery of the lower limb, and the need for stenting is first determined by angiography and the patient’s clinical condition. In case of severe stenosis, balloon dilatation is usually required before stent implantation, and balloon dilatation alone may easily lead to re-occlusion of the vessel in the near future, aggravating the progression of the disease. In recent years, numerous clinical trials have confirmed the clinical value of stenting. At present, the vast majority of patients are in the awake state, through local anesthesia upper extremity radial artery intubation to complete the procedure, balloon dilatation of the patient about 99% of the lesions are placed in the stent, stenting has become the basic technology for the treatment of coronary heart disease.