The present invention relates to an apparatus and method for making an absorbent structure for an absorbent article, comprising a supporting sheet and thereon an absorbent layer, the absorbent layer comprising an absorbent material.According to the present invention a first moving endless surface is provided which has one or more substantially longitudinally extending first mating strips, and at least one further auxiliary moving endless surface is provided which acts against the first mating strips. Pressure is applied between the first moving endless surface and the auxiliary moving endless surface to the first and second supporting sheets at least within a part of the area of the channels, so as to adhere together the first and second supporting sheets.