According to one embodiment of the present invention, a brain-training system using an exercise bicycle comprises: a display device which reproduces the video selected by a user on a screen; a control box for controlling the display device; and a driving device which is driven by the physical driving force of the user so as to generate a driving information signal, and which transmits the driving information signal to the control box, wherein the control box controls the video reproduction operation of the display device in accordance with the driving information signal transmitted from the driving device.
