A traveling toy system is provided, in which it becomes possible to reduce the amount of information transmitted to a video display device. In the traveling toy system, a video camera, a video camera controller which is adjustably controls at least a frame rate of the video camera, a signal transmission device which transmits a video signal outputted from the video camera to a video display device, and electric storage means for power supply are mounted on the traveling toy which travels on a traveling lane using a potential energy. The traveling toy system further includes a traveling toy carrier device which carries the traveling toy from a position where the potential energy is low to a position where the potential energy is high. The video camera controller changes the frame rate so that when a traveling speed of the traveling toy is higher than a given speed, the frame rate may be increased from the frame rate at the time that the traveling speed is lower than the given speed.