The invention provides a house building basement waterproof structure and belongs to the field of house buildings. The structure comprises a side wall and a top layer. A diversion canal is arranged onthe ground of a basement, a flow guide plate is arranged on the side wall, the cross section of the flow guide plate is in a U shape, the two sides of the flow guide plate are fixedly connected to the side wall, the top and the bottom of the flow guide plate are each of an opening structure, the bottom face of the top layer is provided with a waterproof film of a rectangular structure, the waterproof film is obliquely arranged and provided with a top end, a bottom end and two side ends, the top end and the two side ends are fixedly connected to the top layer, the bottom end is connected to the top of the flow guide plate, and water leaked from the top layer can flow along the waterproof film to the flow guide plate so as to flow into the diversion canal. The house building basement waterproof structure is applied in an important area in the basement, water leakage of the basement can be effectively prevented, equipment and users are effectively protected, the equipment is easy to maintain and replace, faults can be treated within a short time, and the structure can be widely applied to house construction.