A method of manufacturing a pants-type diaper, the pants-type diaper including a front waist member, a back waist member, an absorbent body extending over the front waist member and the back waist member, and an absorber disposed in the absorbent body, the method comprising: a step of conveying a first continuous sheet (W4B) in a conveyance direction, the first continuous sheet (W4B) constituting at least one of the front waist member and the back waist member; a step of laminating a plurality of continuous elastic bodies (W4FG) along the conveyance direction on an inner side of the first continuous sheet (W4B) at predetermined intervals in a crossing direction orthogonal to the conveyance direction, laminating a second continuous sheet (W4T), and bonding at least a part of the continuous elastic bodies (W4FG) and the second continuous sheet (W4T) in the conveyance direction; a step of cutting a part of continuous elastic bodies (W4FG) from an outer side of the second continuous sheet (W4T) or an outer side of the first continuous sheet (W4B); and a step of disposing the absorbent body so as to arrange the absorber in a predetermined region, wherein in the step, a part of the continuous elastic bodies (W4FG) that is not bonded to the first continuous sheet (W4B) is cut in a region for forming the pants-type diaper, the region being other than a predetermined region for arranging the absorber, wherein in the step, the part of the continuous elastic bodies (W4FG) is cut only in a front side region or a rear side region, the front side region positioned downstream in the conveyance direction of the predetermined region, the rear side region positioned upstream in the conveyance direction of the predetermined region, so that the front side region or the rear side region include a stretching portion (4E1) of the continuous elastic bodies (W4FG) and a non-stretching portion (4E2) of the continuous elastic bodies (W4FG), and wherein in the step, each part in which each of the continuous elastic bodies (W4FG) arranged in the crossing direction is cut changes alternately between the front side region and the rear side region. a step of conveying a first continuous sheet (W4B) in a conveyance direction, the first continuous sheet (W4B) constituting at least one of the front waist member and the back waist member; a step of laminating a plurality of continuous elastic bodies (W4FG) along the conveyance direction on an inner side of the first continuous sheet (W4B) at predetermined intervals in a crossing direction orthogonal to the conveyance direction, laminating a second continuous sheet (W4T), and bonding at least a part of the continuous elastic bodies (W4FG) and the second continuous sheet (W4T) in the conveyance direction; a step of cutting a part of continuous elastic bodies (W4FG) from an outer side of the second continuous sheet (W4T) or an outer side of the first continuous sheet (W4B); and a step of disposing the absorbent body so as to arrange the absorber in a predetermined region, wherein in the step, a part of the continuous elastic bodies (W4FG) that is not bonded to the first continuous sheet (W4B) is cut in a region for forming the pants-type diaper, the region being other than a predetermined region for arranging the absorber, wherein in the step, the part of the continuous elastic bodies (W4FG) is cut only in a front side region or a rear side region, the front side region positioned downstream in the conveyance direction of the predetermined region, the rear side region positioned upstream in the conveyance direction of the predetermined region, so that the front side region or the rear side region include a stretching portion (4E1) of the continuous elastic bodies (W4FG) and a non-stretching portion (4E2) of the continuous elastic bodies (W4FG), and wherein in the step, each part in which each of the continuous elastic bodies (W4FG) arranged in the crossing direction is cut changes alternately between the front side region and the rear side region.