The diagnostic criteria for stress cardiomyopathy have been controversial in the clinic. The more recognized diagnostic criteria were released by the Mayo Medical Center in 2004 and updated in 2008, which mainly contain four aspects: 1, transiently occurring in the middle of the left ventricle, motion reduction, loss of motion, motion abnormality, it should be noted that it is transiently occurring, because in the diagnosis of stress cardiomyopathy, it is necessary to make differential diagnosis with coronary artery disease and myocardial ischemia. If myocardial exercise is abnormal due to coronary artery disease, there will always be uncomfortable symptoms, while stress cardiomyopathy can be recovered after a period of time. The scope of the lesion involves or does not involve the apical part of the heart, and there is often a factor of stress attack; 2, through the coronary angiography to determine that there is no corresponding stage of myocardial ischemia occurs, but also and coronary artery disease, the left ventricle central lesion involvement is often more than a single vascular lesion caused by the corresponding myocardial lesions. Because coronary artery disease is a single vessel to produce stenosis, followed by ischemia range has a fixed range of involvement, but stress cardiomyopathy involved in the scope of the distribution of blood vessels and often do not agree; 3, the occurrence of new electrocardiographic changes, including ST-segment elevation, T-wave abnormality, or cardiac enzymes are elevated; 4, to exclude other factors leading to myocardial movement abnormalities, such as pheochromocytoma, myocardial amyloidosis, and other systemic lesions.