A manufacturing apparatus of a two-folded member associated with an absorbent article, the manufacturing apparatus manufacturing two-folded members continuous in a continuous direction by folding at a folding portion a continuous member including a plurality of portions serving as absorbent articles aligned in the continuous direction so that the continuous member is folded in two in an intersecting direction, the folding portion being a predetermined portion in the intersecting direction intersecting with the continuous direction, the manufacturing apparatus comprising: a folding mechanism configured to fold the continuous member at the folding portion so as to place one end portion on another end portion of the continuous member in the intersecting direction, the continuous member being conveyed in the continuous direction as a direction of conveyance; a holding mechanism configured to hold the one end portion of the continuous member so that the one end portion is positioned at a proper position in the intersecting direction; a guiding member configured to guide the folding portion in such a manner that the guiding member abuts against the continuous member to be folded from a valley side of the folding portion so as to restrict a movement of the folding portion in the intersecting direction while allowing a movement of the folding portion in the direction of conveyance; and a position adjustment mechanism configured to adjust a position of the other end portion in such a manner that the position adjustment mechanism imparts an external force in the intersecting direction at a predetermined position in the direction of conveyance to the other end portion of the continuous member to be folded so as to position the other end portion at a target position in the intersecting direction, an endless movable guiding member as the guiding member being disposed at least at the predetermined position in the direction of conveyance to which the external force is imparted, the endless movable guiding member moving downstream in the direction of conveyance while abutting against the continuous member from the valley side of the folding portion, a non-installation region where the movable guiding member is not installed existing on a conveyance path of the continuous member, the non-installation region being provided with an immovable guiding member as the guiding member, the immovable guiding member being immovably fixed in the direction of conveyance and the intersecting direction and guiding the folding portion in the direction of conveyance, the movable guiding member being disposed downstream in the direction of conveyance with respect to the immovable guiding member. a folding mechanism configured to fold the continuous member at the folding portion so as to place one end portion on another end portion of the continuous member in the intersecting direction, the continuous member being conveyed in the continuous direction as a direction of conveyance; a holding mechanism configured to hold the one end portion of the continuous member so that the one end portion is positioned at a proper position in the intersecting direction; a guiding member configured to guide the folding portion in such a manner that the guiding member abuts against the continuous member to be folded from a valley side of the folding portion so as to restrict a movement of the folding portion in the intersecting direction while allowing a movement of the folding portion in the direction of conveyance; and a position adjustment mechanism configured to adjust a position of the other end portion in such a manner that the position adjustment mechanism imparts an external force in the intersecting direction at a predetermined position in the direction of conveyance to the other end portion of the continuous member to be folded so as to position the other end portion at a target position in the intersecting direction, an endless movable guiding member as the guiding member being disposed at least at the predetermined position in the direction of conveyance to which the external force is imparted, the endless movable guiding member moving downstream in the direction of conveyance while abutting against the continuous member from the valley side of the folding portion, a non-installation region where the movable guiding member is not installed existing on a conveyance path of the continuous member, the non-installation region being provided with an immovable guiding member as the guiding member, the immovable guiding member being immovably fixed in the direction of conveyance and the intersecting direction and guiding the folding portion in the direction of conveyance, the movable guiding member being disposed downstream in the direction of conveyance with respect to the immovable guiding member.