Myocardial fibrosis is one of the main manifestations of myocardial remodeling and a common pathological result of various cardiovascular diseases, which is closely related to poor prognosis such as heart failure, malignant arrhythmia, and sudden death. At present, intervention or even reversal of myocardial fibrosis has become a new target of prevention and treatment of cardiovascular disease, so the accurate detection of myocardial fibrosis has important clinical significance. Speckle tracking echocardiography (STE) can dynamically monitor the changes of myocardial motion and cardiac function, and has important clinical significance for the diagnosis, follow-up and prognosis of cardiovascular diseases. Previous studies have confirmed that STE can indirectly evaluate myocardial fibrosis.