Provided is a disposable wearing article improved so that the tensile stress in the middle of the crotch region as well as in the vicinity thereof can be set to be higher than in the other regions without adjusting the number and thickness of the leg elastic elements and a relatively large body waist retaining space can be formed to protect the wearer's skin from being soiled with body waste. A crotch region 15 is provided in both lateral portions thereof with a plurality of leg elastic elements 50, 51 extending in a longitudinal direction Y wherein the respective outermost elastic elements 51 are laid so as to define concave curves in a middle zone of the crotch region 15 and in the vicinity thereof.