The narrowed blood vessels can be opened at the same time during cardiography. Coronary angiography is an effective way to perform coronary artery assessment. The coronary angiography allows us to understand the extent of coronary artery stenosis and assess the severity of the condition. If severe coronary artery stenosis is found during coronary angiography, stents can be implanted at the same time on the basis of adequate antiplatelet therapy to open up the narrowed blood vessels and increase the blood supply to the coronary arteries, so as to avoid another operation to increase the patient’s pain. Coronary angiography should be fully prepared before various preparations, such as antiplatelet therapy, at the same time and the patient’s family to do a good job of communication, angiography process, if there are indications, can be carried out at the same time for interventional therapy.