PROBLEM TO BE SOLVED To provide a technique capable of easily peeling a sheet when removing a pants-type disposable diaper from a wearer.SOLUTION: The pants-type disposable diaper comprises a seat portion including a belly side seat portion disposed on the belly side of the wearer and a back side seat portion disposed on the back side of the wearer, a ventral side seat portion A pair of joining portions which are joined together by overlapping both side end portions in the width direction of the seat portion and both side end portions in the width direction of the back side seat portion, and a pair of joining portions positioned on the inner side in the width direction of the joining portion in the seat portion And a breaking strength portion along which the breaking strength along the joining portion is reduced as compared with other portions of the seat portion so that the seat portion can be broken along the joining portion.BACKGROUND OF THE INVENTION【課題】パンツ型使い捨ておむつを着用者から外す場合に、シートを容易に剥離することが可能な技術を提供する。【解決手段】パンツ型使い捨ておむつは、着用者の腹側に配置される腹側シート部と、着用者の背側に配置される背側シート部と、を含むシート部と、腹側シート部の幅方向における両側端部と背側シート部の幅方向における両側端部とがそれぞれ重ね合わせて接合された一対の接合部と、シート部における接合部の幅方向内側に位置し接合部に沿って延び、接合部に沿う破断強度がシート部の他の部位よりも減じられてシート部を接合部に沿って破断可能な易破断部と、を備える。【選択図】図1
