Etibaptide is a cyclic heptapeptide that reversibly inhibits platelet aggregation by blocking the binding of fibrinogen, von Willebrand factor and other adhesion ligands to GPIIb/IIIa. It is suitable for acute coronary syndrome, intracoronary interventional therapy and acute Q-wave myocardial infarction. It can relieve the symptoms of unstable angina pectoris and reduce the incidence of cardiovascular events. It can limit the scope of non-Q wave myocardial infarction and reduce the occurrence of transmural myocardial infarction.