Provided is a disposable bodily fluid absorbent wearing article including a liquid-pervious topsheet formed with ridges and troughs extending in parallel to each other, improved to attach a leakage-barrier thereto. A bodily fluid absorbent core material assembly 13 is interposed between a liquid-pervious topsheet 11 and a liquid-impervious backsheet 12. The topsheet 11 is formed on its outer surface 58 with ridges 61 and troughs 62 extending in parallel to each other in a front-back direction A. Opposite outer edges in a width direction B of the core material assembly 13 are formed with leakage-barriers 31, respectively. Opposite lateral regions 60b of the topsheet 11 extending outward at least partially beyond opposite side edges 51 of the core material assembly 13 are compressed so as to lower a height of the ridges 61.
