A pants-type wearing article adapted to inhibit a decrease in the effective area of the buttocks covering portion to cover the wearers buttocks. A pants-type diaper 10 having a longitudinal direction Y, a transverse direction X and a front-back direction, and including a front panel 20 adapted to cover a front waist region of the wearer, a rear panel 30 adapted to cover a rear waist region of the article wearer and a crotch panel 40 connected to the front panel 20 and the rear panel 30 so as to cover a crotch region of the article wearer. The rear panel 30 is formed with a rear waist covering portion 12 having a dimension in the longitudinal direction Y substantially the same as a dimension of the front panel 20 and a buttocks covering portion 50 contiguously extending downward from the rear waist covering portion 12 and adapted to cover at least partially the wearers buttocks. The crotch panel 40 includes an absorbent core 41 and gasket cuffs 70 extending in the front-back direction along lateral portions of the absorbent core 41 and having gasket elastics 71 adapted to be elastically contractible. The buttocks covering portion has buttock elastics 51 extending in the transverse direction X. The buttocks covering portion and the crotch panel are joined to each other in a zone defined between the gasket cuffs opposite to each other in the transverse direction and not joined to each other at portions in which the gasket cuffs are disposed.