A 3D composite core for a hygiene article is disclosed. The 3D composite core comprises dust-free paper, a water absorbing layer and a flow guide non-woven fabric wrapped outside, the water absorbinglayer is arranged between two layers of the dust-free paper, the water absorbing layer comprises a macromolecular water absorbing material and non-woven fabrics, the surfaces of the non-woven fabricsform a three-dimensional containing area, and the macromolecular water absorbing material is at least packed in the three-dimensional containing area. According to the core, the effective gluing areaof the water absorbing material is improved by arranging the non-woven fabrics with the three-dimensional containing area, thereby reducing the thickness of an absorbent core.