Abstract
A workpiece loading apparatus includes a pick-up stage, an A-side palletizing stage and a B-side palletizing stage, an A-side lifting device, a B-side lifting device, and a workpiece transfer device. The workpiece transfer device is configured to transfer a workpiece picked up from the pick-up stage to one of an A-side stocker or a B-side stocker until the stocker becomes full, and a corresponding one of the A-side lifting device or the B-side lifting device is configured to operate so that a height of the corresponding one of the A-side stocker or the B-side stocker is aligned with a workpiece horizontal movement height of the workpiece transfer device. When one of the A-side stocker or the B-side stocker becomes full, the workpiece transfer device switches an operation to transfer of the workpiece to another one of the stockers.