This absorbent article manufacturing device is provided with a rotary drum where a workpiece is arranged on a web on which an elastic member is arranged, and a web position guide mechanism which guides the position of the web. The rotary drum is provided with a sucking unit for attaching the workpiece by suction. The sucking unit changes the arrangement direction of the workpiece from a first arrangement direction at a receiving point, to a second arrangement direction at a delivery point. In the cross section along the second arrangement direction at the delivery point, the outer edge of the outer form of the workpiece attached by the sucking unit is nearer to the rotational axis of the rotary drum than the center of the workpiece is. The web position guide mechanism arranges the web so as to contact the center of the workpiece at a contact point upstream of the delivery point, and arranges the web so as to contact the outer edge of the workpiece at the delivery point.