A method of producing an absorbent body (50, 51) for an absorbent article, the method comprising: a first step of supplying a base sheet having one main surface thereof applied with a first adhesive, to a conveyance device, and conveying the base sheet while suctioning another main surface of the base sheet through a conveyance surface of the conveyance device; a second step of overlapping, along the conveyance surface of the conveyance device, another main surface of a fiber sheet having one main surface thereof nap-raised with the one main surface of the base sheet applied with the first adhesive, thereby forming a first laminate where the fiber sheet is laminated on the base sheet; a third step of scattering a granular absorbent material capable of absorbing and holding liquid, onto the one main surface of the fiber sheet of the first laminate, and infiltrating the scattered absorbent material into an inside of the fiber sheet when the other main surface of the base sheet is suctioned through the conveyance surface of the conveyance device; a fourth step of overlapping one main surface of a cover sheet having the one main surface thereof applied with a second adhesive with the one main surface of the fiber sheet of the first laminate into the inside of which the absorbent material is infiltrated, thereby forming a second laminate where the cover sheet is laminated on the first laminate; and a fifth step of compressing the second laminate in a thickness direction by using compression means, and spreading the first adhesive applied to the base sheet and the second adhesive applied to the cover sheet, in the inside of the fiber sheet of the second laminate. a first step of supplying a base sheet having one main surface thereof applied with a first adhesive, to a conveyance device, and conveying the base sheet while suctioning another main surface of the base sheet through a conveyance surface of the conveyance device; a second step of overlapping, along the conveyance surface of the conveyance device, another main surface of a fiber sheet having one main surface thereof nap-raised with the one main surface of the base sheet applied with the first adhesive, thereby forming a first laminate where the fiber sheet is laminated on the base sheet; a third step of scattering a granular absorbent material capable of absorbing and holding liquid, onto the one main surface of the fiber sheet of the first laminate, and infiltrating the scattered absorbent material into an inside of the fiber sheet when the other main surface of the base sheet is suctioned through the conveyance surface of the conveyance device; a fourth step of overlapping one main surface of a cover sheet having the one main surface thereof applied with a second adhesive with the one main surface of the fiber sheet of the first laminate into the inside of which the absorbent material is infiltrated, thereby forming a second laminate where the cover sheet is laminated on the first laminate; and a fifth step of compressing the second laminate in a thickness direction by using compression means, and spreading the first adhesive applied to the base sheet and the second adhesive applied to the cover sheet, in the inside of the fiber sheet of the second laminate.