Objective\ To study the changes of cardiac function in postmenopausal women.Method\ The cardiac hemodynamic parameters were measured by color Doppler echocardiography in 30 postmenopausal and 24 reproductive women.Results\ There were more bad changes in hemodynamic parameters in postmenopausal group than that in the other group,which included the cardiac systolic function,diastolic function and pump function.Conclusion\ The low estrogen level in menopausal women will do harm to their cardiac function.