A cutting station of a cardboard sheet from a continuous strip of cardboard, the continuous strip of cardboard being folded a plurality of times on itself so as to form a fanfold, characterised in that it comprises: a conveyor plane, predisposed so as to be able to restingly receive the continuous strip of cardboard which is unwound from the fanfold, conveying means, for advancing the continuous strip of cardboard along the conveyor plane in an advancement direction (w) and for halting the continuous strip of cardboard for enabling cutting thereof; a cutting group, predisposed above the conveyor plane, and comprising a first rotary circular blade and a toothed second rotary circular blade, arranged by a flank of and parallel to the first rotary circular blade, and upstream of the first rotary circular blade with respect to the advancement direction (w) of the continuous strip of cardboard along the conveyor plane, the first rotary circular blade and the toothed second rotary blade being mounted and predisposed on the cutting group in such a way that a rotation axis thereof is parallel to the advancement direction (w) of the continuous strip of cardboard, and therefore cutting profiles thereof are arranged transversally to the continuous strip of cardboard; the cutting group being mounted above the conveyor plane so as to be movable in alternating translation transversally to the conveyor plane with respect to the advancement direction (w) of the continuous strip of cardboard, when the conveying means halt the strip of cardboard along the conveyor plane; the first rotary circular blade being mounted on the cutting group so that the cutting profile thereof passes beyond the conveyor plane at a transversal channel present in the conveyor plane so as to be able to trim and cut the continuous strip of cardboard and obtain a cardboard sheet, the second toothed circular blade being mounted on the cutting group so that the cutting profile thereof contacts the continuous strip of cardboard without passing beyond it so as to realise thereon a transversal score line parallel to the edge cut by the first circular blade on the continuous strip of cardboard. a conveyor plane, predisposed so as to be able to restingly receive the continuous strip of cardboard which is unwound from the fanfold, conveying means, for advancing the continuous strip of cardboard along the conveyor plane in an advancement direction (w) and for halting the continuous strip of cardboard for enabling cutting thereof; a cutting group, predisposed above the conveyor plane, and comprising a first rotary circular blade and a toothed second rotary circular blade, arranged by a flank of and parallel to the first rotary circular blade, and upstream of the first rotary circular blade with respect to the advancement direction (w) of the continuous strip of cardboard along the conveyor plane, the first rotary circular blade and the toothed second rotary blade being mounted and predisposed on the cutting group in such a way that a rotation axis thereof is parallel to the advancement direction (w) of the continuous strip of cardboard, and therefore cutting profiles thereof are arranged transversally to the continuous strip of cardboard; the cutting group being mounted above the conveyor plane so as to be movable in alternating translation transversally to the conveyor plane with respect to the advancement direction (w) of the continuous strip of cardboard, when the conveying means halt the strip of cardboard along the conveyor plane; the first rotary circular blade being mounted on the cutting group so that the cutting profile thereof passes beyond the conveyor plane at a transversal channel present in the conveyor plane so as to be able to trim and cut the continuous strip of cardboard and obtain a cardboard sheet, the second toothed circular blade being mounted on the cutting group so that the cutting profile thereof contacts the continuous strip of cardboard without passing beyond it so as to realise thereon a transversal score line parallel to the edge cut by the first circular blade on the continuous strip of cardboard.