A first web formation step in a method for producing an absorber, wherein: the transport speed of a first web (11) in a web transport step is increased or decreased in conformity with the increase or decrease in the molding speed of a molding step the fiber stacking speed of fibers (8) of a first fiber group in a fiber stacking step is increased or decreased in conformity with the increase or decrease in the transport speed of the first web (11) in the web transport step and the speed of homogenization to a stacked fiber body (15) in a homogenization step is increased or decreased so as to be in conformity with the increase or decrease in the fiber stacking speed of the stacked fiber body (15) in the fiber stacking step.
