The present invention to provide an absorbent structure adapted to prevent the liquid absorbent materials from falling off the wrapping sheets. An aggregate 21 of liquid absorbent materials 21d in an absorbent structure 20 has an inner surface 21a covered with a first wrapping sheet 31 and an outer surface 21b and lateral surfaces 21c covered with a second wrapping sheet 32. The first wrapping sheet 31 and the second wrapping sheet 32 respectively have first extended portions 31a lying outboard of the lateral surfaces 21c and second extended portions 32a wherein the first extended portions 31a and the second extended portions 32a are put flat and bonded together to form laminated regions 35. The laminated regions 35 cover the lateral surfaces 21c of the aggregate 21 and part of the outer surface 21b which in turn covers these lateral surfaces 21c and the outer surface 21b.