The present invention aims to provide a disposable pants-type wearing article adapted to be made by a simplified process and having a pair of leg-openings adapted to be automatically broadened. Disposable pants-type wearing article 1 includes a sheet-like member 13. The sheet-like member is folded in two along a folding guide extending in a transverse direction and these respective halves of the sheet-like member 13 are bonded to each other along opposite lateral margins 16a, 17a, 16b, 17b thereof to form the article. Leg-openings 36a, 36b are defined by front incisions 46a, 46b and rear incisions 47a, 47b made in the sheet-like member so that these incisions extending at a level above the folding guide. Above the front incisions and the rear incisions, upper elastic members 26, 27 are attached in a stretched state to the article and, below the front incisions and the rear incisions, lower elastic members 28, 29 are attached in a stretched state to the article. Under contraction of these elastic members, a transverse dimension of the zone in which the upper elastic members are attached to the article becomes larger than a transverse dimension of the zone in which the lower elastic members are attached to the article ( Fig. 1 ).
