PROBLEM TO BE SOLVED: To provide a flexible structure of an absorbent article in which elastic shrinkage force is changed into an expanding/contracting direction of an elastic member with a simple structure.SOLUTION: The above problem is solved as follows: a first sheet material 20A and a second sheet material 20B are bonded in an expanded state by a hot melt adhesives 40 of a predetermined width intermittently arranged in the expanding/contracting direction, and thereby a sheet bonding part is formed; an elastic member 25 is fixed in the first sheet material 20A and the second sheet material 20B by each hot melt adhesive 40, and an elastic member fixing part 25f is formed; the hot melt adhesive 40 has a first area A1 applied in a first pattern, and a second area A2 positioned at least in one side of the expanding/contracting direction to this first area A1 and with the hot melt adhesives 40 applied in a second pattern unlike the first pattern; and a non-fixation ratio in the expanding/contracting direction in the first area A1 is smaller than the non-fixation ratio in the expanding/contracting direction in the second area A2.