Composite packaging paper board

The utility model relates to the technical field of paper boards and particularly relates to a composite packaging paper board. The composite packaging paper board comprises a waterproof layer, an upper paper layer, an upper fiber layer, core layers, a lower fiber layer and a lower paper layer which are arrayed in sequence from top to bottom, wherein the core layers comprise an upper core layer and a lower core layer; the upper core layer and the lower core layer are hotly adhered by glue; the waterproof layer is hotly adhered to the upper paper layer; the upper paper layer, the upper fiber layer, the core layers, the lower fiber layer and the lower paper layer are co-extruded and molded. The composite packaging paper board is reasonable in structure and low in production cost; the foamed plastic core layers are additionally arranged in the paper board so as to achieve a good buffering and vibration-absorption effect; the waterproof layer is hotly adhered to the outer surface of the paper board and the fiber layers are arranged among the core layers and the upper paper layer, so that the paper board has a waterproof function; meanwhile, the anti-tearing performance of the paper board is enhanced.