Prefabricated concrete laminated slab

The invention discloses a prefabricated concrete laminated slab. The prefabricated concrete laminated slab comprises a cuboid slab body, reinforcing grooves are formed in the upper end face of the slab body in parallel, dovetail grooves are transversely formed in the two end faces, perpendicular to the reinforcing grooves, of the slab body, the section of each reinforcing groove is in an inverted-T shape, truss steel bar sets are arranged in the reinforcing grooves, each truss steel bar set comprises erecting ribs and tie bars, the erecting ribs are longitudinally arranged, reinforcing bent ends are arranged at the bottoms of the erecting ribs and extend into the slab body, and the tie bars are parallel to the slab body. Compared with the prior art, the prefabricated concrete laminated slab has the advantages that the structure is clear, use is convenient, a formwork can be omitted when the prefabricated concrete laminated slab is used as a floor plate, a post-pouring concrete layer and a prefabricated part l