This paper describes a non-contact suppression of flow-induced wave in a thin film using continuous pressure wave. It is shown that the non-contact suppression technique is effective against the flow-induced wave in the thin film. We investigate the control performance and characteristics of this suppression technique by experimental results. Characteristics of the suppression technique are that responsibility is quickly and continuous pressure wave with specific range of frequency and amplitude can suppress flow-induced wave in the thin film. Using the non-contact suppression technique, critical flow velocity where is generated flow-induced wave in the film is increased.