A pull-on absorbent article 1 includes an outer cover 2 and an absorbent assembly 3 fixed on an inner side of the outer cover 2. The outer cover 2 has a front portion 2A to be worn around a wearer's front, a crotch portion 2C to be worn around a wearer's crotch, and a rear portion 2B to be worn around a wearer's rear. Opposite front side edges 2a, 2a and opposite rear side edges 2b, 2b of the outer cover are joined together to form a pair of side seals 4, 4. The outer cover 2 has non-bonded edges 2a" and 2b" located along the front and rear side edges 2a and 2b. The front side edge 2a and the rear side edge 2b are not joined to each other at the non-bonded edges 2a" and 2b". The non-bonded edges 2a" and 2b" are located closer to the crotch portion than a part of the front and rear side edges 2a and 2b where the side seals 4 are formed.