To provide a stacking apparatus capable of efficiently and continuously mass-producing a corrugated cardboard laminate high in strength used as a raw material or the like of a corrugated cardboard flat panel.

The stacking apparatus is equipped with a conveyor 72 for supporting the corrugated cardboard laminate 40, which is formed by laminating a plurality of corrugated cardboard sheets 1 comprising single-faces or double- faced corrugated cardboard to bond the same, from below to feed the same, a lifter 73 for raising and lowering the conveyor 72, a weighting machine 74 for adding a weight on the upper surface of the corrugated cardboard laminate 40 when the corrugated cardboard laminate 40 is pushed up by the rising of the conveyor 72 in a state stopped on the conveyor 72 at a production position and a clamp machine 75 for clamping the corrugated cardboard laminate 40 from a horizontal direction after the addition of the weight is released. When the conveyor 72 falls in such a state that the corrugated cardboard laminate 40 is grasped, the conveyor 72 is allowed to run to place the next corrugated cardboard laminate 40 on the conveyor 72.