A device for producing a disposable wearable article, comprising: a doubling unit provided in a line for continuously conveying a sheet and configured to double the sheet together with an absorber such that opposite side edges of the sheet having the absorber arranged thereon are proximate to or overlapped with each other; and a joining/cutting unit provided in the line and configured to join parts of the doubled sheet at opposite sides of the absorber and then cut the joined part; characterized by a pressing unit arranged upstream of the joining/cutting unit in a sheet conveying direction (a), the pressing unit including a pressing mechanism (71, 72) configured to press the doubled sheet together with the absorber in a thickness direction, wherein: the doubling unit includes a doubling member having a bottom edge for doubling the sheet; the doubling member includes a friction reducing mechanism (406, 408) provided on the bottom edge and configured to reduce friction between the doubling member and a crotch part of the sheet including the absorber in a state held in contact with the crotch part; the friction reducing mechanism (406, 408) includes a plurality of pulleys rotatably provided on the bottom edge of the doubling member and a folding endless belt mounted on each pulley; and the plurality of pulleys hold the folding endless belt such that a part of the folding endless belt in contact with the crotch part is movable in the sheet conveying direction (a). a doubling unit provided in a line for continuously conveying a sheet and configured to double the sheet together with an absorber such that opposite side edges of the sheet having the absorber arranged thereon are proximate to or overlapped with each other; and a joining/cutting unit provided in the line and configured to join parts of the doubled sheet at opposite sides of the absorber and then cut the joined part; characterized by a pressing unit arranged upstream of the joining/cutting unit in a sheet conveying direction (a), the pressing unit including a pressing mechanism (71, 72) configured to press the doubled sheet together with the absorber in a thickness direction, wherein: the doubling unit includes a doubling member having a bottom edge for doubling the sheet; the doubling member includes a friction reducing mechanism (406, 408) provided on the bottom edge and configured to reduce friction between the doubling member and a crotch part of the sheet including the absorber in a state held in contact with the crotch part; the friction reducing mechanism (406, 408) includes a plurality of pulleys rotatably provided on the bottom edge of the doubling member and a folding endless belt mounted on each pulley; and the plurality of pulleys hold the folding endless belt such that a part of the folding endless belt in contact with the crotch part is movable in the sheet conveying direction (a). the doubling unit includes a doubling member having a bottom edge for doubling the sheet; the doubling member includes a friction reducing mechanism (406, 408) provided on the bottom edge and configured to reduce friction between the doubling member and a crotch part of the sheet including the absorber in a state held in contact with the crotch part; the friction reducing mechanism (406, 408) includes a plurality of pulleys rotatably provided on the bottom edge of the doubling member and a folding endless belt mounted on each pulley; and the plurality of pulleys hold the folding endless belt such that a part of the folding endless belt in contact with the crotch part is movable in the sheet conveying direction (a).