To provide a manufacturing method of an absorbing medium which can be carried out using an apparatus of simple structure and which is excellent in correspondence to the shape change of an absorbent core.

The manufacturing method of the absorbing medium 1 for an absorbent article has a step of removing parts 21 to be removed of a prescribed shape from a long deposition 2 by suction or blowing to form the absorbing medium 1 from remaining parts 22 from which the parts 21 to be removed are removed. The components of the parts 21 to be removed are collected, and reused as the components of the deposition 2. The parts 21 to be removed are arrayed intermittently on both sides in the longitudinal direction of the long deposition 2. In the absorbing medium 1, the absorbent core is covered with cover sheets 12A and 12B other than the front surface sheet and the rear surface sheet of the absorbent article.