Right ventricular-pulmonary arterial coupling refers to the interaction between the right ventricle and pulmonary artery,defined by the ratio of right ventricular systolic function parameters to pulmonary artery elasticity parameters.It has important reference value in the clinical application of cardiovascular disease.Currently,there are two methods for evaluating right ventricular-pulmonary arterial coupling:invasive testing and non-invasive examination.This article reviews the clincal application progress of right ventricular-pulmonary arterial coupling in cardiovascular disease in recent years.