A printed board transport apparatus includes a first conveyor which transports a printed board between a working portion and printed board loading/unloading portions of a working apparatus, and a second conveyor installed in the printed board loading/unloading portions. The first conveyor has a function of rotating a first transport member, and a function of moving in a direction parallel to the transport direction. The second conveyor transports the printed board by rotating a second transport member. After the length of a downstream portion of the printed board, which is placed on a conveyor on the downstream side, has reached a support length, the first conveyor moves toward the working portion by changing the rotational speed of the first transport member to a rotational speed for conveyor movement.