This study deals with a fundamental research on non-contact control of vibration by utilizing acoustic radiation pressure. To obtain direct control system of acoustic radiation pressure by applying feedback control theories, transfer function from certain control input to acoustic radiation pressure as an output is needed. In this report, the frequency transfer function is measured by using an experimental system of oscillating current is controlled electromechanically as a control input. The property of obtained transfer functions is discussed precisely. Moreover, the applicability of electronic control is also considered.