An absorbent (23A, 23B) of a pad type disposable diaper (200) is formed of a lower layer absorbent (23B) and an upper layer absorbent (23A) formed on a surface side of the lower layer absorbent, wherein a pair of left and right slits (40) that pass through only the upper layer absorbent (23A) or the upper layer absorbent (23A) and the lower layer absorbent (23B) in a thickness direction is extended in a front-rear direction region including a crotch portion (C2), wherein each of the pair of left and right slits has a predetermined width, and the left slit and the right slit are spaced apart in a width direction, wherein a top sheet (22) includes a depressed portion (30) that falls into the slits (40), and wherein, in at least a region located between the slits (40) in the top sheet (22), a large number of convex portions (31) protruding toward the surface side is arranged in a zigzag manner while being spaced apart by an interval, and the interval (32c) between the adjacent convex portions (31) in the width direction is shorter than each of sizes in the width direction (31c) of the convex portions (31) located at the front side and at a rear side of a part of the interval.
