The clinical significance of cardiac enzyme profile is to detect the presence of myocardial injury and necrosis. Myocardial enzyme profiles are primarily used to determine the presence or absence of myocardial injury and can help diagnose myocardial injury diseases such as myocardial infarction and pericarditis. It can also help diagnose non-myocardial injury diseases such as viral hepatitis, acute lymphoblastic leukemia, and polymyositis. Cardiac enzymes are normally distributed in cardiomyocytes. When cardiomyocytes are damaged, cardiac enzymes are released into the bloodstream, resulting in a significant elevation of serum cardiac enzymes, especially CK and CK-MB levels, which are elevated in proportion to the area of myocardial infarction, and can be valuable in the diagnosis of myocardial infarction. When other diseases such as angina pectoris and pericarditis, myocardial enzymes will also have different degrees of elevation. It is recommended that patients go to regular hospitals in time to clarify the cause of the disease and standardize the treatment.