Provided is a pants-type disposable diaper cover, which can mount an absorptive pad easily and which can hold the mounted absorptive pad snugly without any positional displacement. The pants-type disposable diaper cover has a structure, in which elastically extensible members are arranged between two nonwoven-fabric sheets, and in which a waist opening and a pair of right and left leg openings are formed. A pad-fixing sheet having its front end portion and back end portion fixed is arranged in a diaper cover region corresponding to the mounting portion of the absorptive pad. The diaper cover includes at least elastically extensible waist members arranged around the waist opening, and a plurality of curved elastically extensible members arranged to extend in a front and in a back from the body sides to the crotch side, to cross the arranged portions of the absorptive pad on the crotch side, and then to draw a plurality of loci extending from the crotch side to the body sides.
