PROBLEM TO BE SOLVED: To produce easily an absorbent article, by eliminating folding processing of a first substrate sheet, for forming belt members, when producing the absorbent article comprising an absorbent body and a pair of belt members which are laminated to the absorbent body from a skin side of the absorbent body in a thickness direction, and arranged in a width direction.SOLUTION: An absorbent article comprises in a state before the absorbent article is finished: an absorber body 10 and a pair of belt members 30 laminated to the absorber body from a skin side and arranged in a width direction. Each of the belt members comprises a leg-surrounding opening part. The leg-surrounding opening part is formed on a first substrate sheet for forming the belt member, then the first substrate sheet on which the leg-surrounding opening part is formed, is laid on and fixed to a second substrate sheet at a part of the second substrate sheet facing a part of the first substrate sheet positioned outside of the width direction relative to the leg-surrounding opening part, from a skin side of the second substrate sheet, while combined with a second substrate sheet for forming the absorbent body from a skin side of the second substrate sheet.SELECTED DRAWING: Figure 5COPYRIGHT: (C)2017,JPO&INPIT