Coronary intervention indications include coronary angiography indications and coronary intervention indications. Coronary angiography indications include those who have high clinical suspicion of coronary artery disease and cannot be diagnosed by electrocardiogram and cardiac ultrasound, etc., and need coronary angiography for examination; there are also some patients who cannot be examined by CTA due to various conditions, such as fast heartbeat, and must be diagnosed by angiography; patients with valve replacement before thoracic surgery generally need to go through coronary angiography to see if there are any vascular lesions before further surgery. Surgical valve replacement bypass surgery. The indications for coronary intervention include patients with angina pectoris that cannot be relieved by conservative medical treatment, such as stent implantation and acute myocardial infarction, for which interventional treatment is the preferred and rapid method. It is characterized by small trauma, quick recovery, minimal damage to the patient, and the patient can recover quickly, and the results are very satisfactory and can be repeated, so it can achieve a better purpose.