According to the present embodiment, a control device of a conveyor system controls a moving device and a suction device to suction the transport target article so that an approximate center of an opening of at least one suction unit is located on a first imaginary line, and remaining suction unit is located on one end side in a longitudinal direction of the transport target article with respect to the first imaginary line, controls a turning-over section to be in a front-back reversing orientation, and performs control so that suction of the transport target article by the suction units is released after the suction device is in the front-back reversing orientation.