Provided is an elastic member which has low stretching stress in a stretchable direction in a stretchable structure of an elastic sheet and is excellent in a feeling of wearing in the case of being applied to an absorbent article.An elastic sheet stretchable structure is provide in which an elastic film 30 is stacked between a first sheet layer having air permeability and a second sheet layer having air permeability, and the first sheet layer and the second sheet layer are bonded through joint holes 31 penetrating the elastic film 30 at a plurality of sheet joined portions arranged at intervals. The joined portions have first joined portions 40 and second joined portions 41, a plurality of rows of the first joined portions 40 is formed at intervals in a stretchable direction ED, and rows of the second joined portions 41 having a short length are formed between the rows of the first joined portions 40.
