A method of changing a transporting configuration of a workpiece of an absorbent article includes: for the workpiece having a shape in which a longitudinal central section is narrower in the lateral direction than longitudinal end sections, transporting a plurality of workpieces in longitudinal-direction flowing, the plurality of workpieces being transported in a state where the longitudinal end sections of each workpiece are adjacent to the central section of another workpiece and the plurality of workpieces form N workpiece lines (N is an integer of 2 or more) arranged in a lateral direction forming each workpiece group including N workpieces by correlating, based on a predetermined correlation pattern and changing a transporting configuration of the workpieces of the workpiece group from the longitudinal-direction flowing to the lateral-direction flowing. The forming of the workpiece group is performed by correlating workpieces arranged side by side in the lateral direction.
