PURPOSE: To enable a stable pasting of a label made with a label making machine, a printing machine and the like, by a method wherein the label is blown by a compressed air onto an adhesive layer formed by coating an adhesive on a porous body.

CONSTITUTION: An aerated lightweight concrete(ALC) panel 6 which is a porous body is transferred by a roller conveyor 7. In the course of this transfer, a hot-melt adhesive 9 is jetted by an adhesive coating device 8 to coat a label pasting place on a long-sided and small surface. Next, a label 2 which is preset on a vacuum holding part 11 of a labelling device 10 is blown by a compressed air to paste on the adhesive 9 layer. By this, powdery dust on the surface of the porous body is fixed to obtain a large adhesing area. In addition, the adhesive is made to invade recessed parts on the surface layer of the porous body, so that pasting force of the label can be increased.