Acute coronary syndromes are a group of clinical syndromes caused by acute myocardial ischemia, mainly including unstable angina, non-ST-segment elevation myocardial infarction, and acute ST-segment elevation myocardial infarction. Unstable angina and non-ST-segment elevation myocardial infarction are a group of clinical syndromes caused by atheromatous plaque rupture or erosion, accompanied by varying degrees of surface thrombosis, vasospasm, and distal vascular embolization. The nature of the patient’s chest discomfort is similar to that of typical stable angina, usually more severe and lasting up to tens of minutes, and the chest pain may occur at rest. Episodes may also be accompanied by sweating, nausea, vomiting, palpitations, or dyspnea. For acute ST-segment elevation myocardial infarction, it is usually due to the rupture of unstable plaque in the coronary artery, erosion of the coronary artery on the basis of secondary thrombosis, resulting in sustained and complete occlusion of coronary artery vessels, which can threaten the patient’s life, and requires timely treatment such as interventional thrombolytics or cardiac stent implantation. Acute coronary syndrome should not be underestimated, once the emergence of medical treatment must be timely to follow the doctor’s instructions, to avoid delaying the rescue time, resulting in patients with life-threatening.