To make the unfolding work of the side flaps (20) easy, and to make the tape tip end portions (35) of the fastening tapes (30) difficult to contact the skin of the wearer may both be maintained. An absorbent article (1) includes: a side flap and a fastening tape provided to a flap tip end portion (23) of the side flap, the fastening tape being unfolded adapted to protrude to an outer side than the flap tip end portion during use, the fastening tape being folded up by joining a joining surface (34) of the fastening tape to a skin side surface of the side flap, the side flap being temporarily fastened in a state folded up along a first fold line portion (41) that is positioned at the flap tip end portion side and along a second fold line portion (42) that is positioned to the base end portion side of the side flap than the first fold line portion, in a state where the side flap is temporarily fastened, the flap tip end portion being positioned to an outer side than the first fold line portion, a tape tip end portion of the fastening tape being positioned to an outer side than the first fold line portion.
