The present invention aims to provide a disposable wearing article improved so that front and rear waist regions (13, 14) may assure desired fitness without adversely affecting an absorption capacity of a bodily fluid-absorbent core assembly (55). At least one of front and rear waist regions includes an inner sheet (32) lying on a skin-facing side and having stretch properties and an outer sheet (30) lying on a non-skin-facing side and having a low elastic contractile force. In a section of this one waist region occupied by a liquid-absorbent core assembly including a bodily fluid-absorbent core, the inner sheet is partially cut to define a perforated region (51). Adhesive (65) used to bond the liquid-absorbent core assembly to the inner sheet and adhesive (35) used to bond the inner sheet to the outer sheet are put in contact with and joined to each other through openings (50 a) developed by partially cutting the inner sheet. (FIG. 7)