Because of the usually asymptomatic nature of patients with coronary myocardial bridge, this anatomical abnormality has long been considered a benign variant. However, with the popularity of coronary angiography and clinical research, more and more scholars believe that myocardial bridge may be serious complications, and even threaten human life. At present, its pathogenesis, diagnosis and treatment have received extensive attention and research, but there is no clear guide to guide the clinical diagnosis and treatment. This review summarizes the incidence, pathophysiology, diagnosis and treatment of myocardial bridge and the research progress, and provides the basis for the standardized diagnosis and treatment of myocardial bridge to benefit more and more patients.