The invention discloses a prefabricated composite floor slab and a nested structure thereof and belongs to the technical field of composite floor slabs. The prefabricated composite floor slab comprises an integrated structure of the prefabricated composite floor slab and a steel bar truss thereof, wherein the integrated structure comprises a main body floor slab and convex strips directly generated on the two sides of the main body floor slab; a groove penetrating through the surface of the main body floor slab is formed in the main body floor slab; the convex strips and the groove are arrange...
