Floor waterproof structure

The utility model relates to the technical field of terraces, and discloses a terrace waterproof structure which comprises a structural layer, a surface layer is arranged at the upper end of the structural layer, a cement mortar protection layer is arranged on a water absorption layer below the surface layer, a coiled material is arranged on the lower layer of the cement mortar protection layer, and a first concrete layer is arranged below the coiled material. A first reinforcing mesh is embedded in the lower end of the first concrete layer, supporting steel bars are welded to the lower end of the first reinforcing mesh and form a cavity, a second concrete layer is arranged on the lower surface of a second reinforcing mesh, a drainage groove is formed in the second concrete layer, and the drainage groove penetrates through the interior of the second concrete layer. And the right end of the drainage groove is fixedly connected with a drainage port. According to the floor, the drainage effect of the floor can b