Hollowed-out composite floor

The invention discloses a hollowed-out composite floor. The hollowed-out composite floor comprises a base. One or more assembling grooves are correspondingly formed in the two sides of the base. A support frame is mounted in each assembling groove. The support frames protruding upwardly are arranged at the upper end of the whole base side by side in a covering manner. A hollowed-out layer is formed between every two adjacent support frames. An opening is formed in the upper end face of the base. A collection box is arranged in the opening end, and a collection cavity is formed in the upper end face of the collection box. The collection cavity right faces the support frame at the upper end. The hollowed-out composite floor is simple in structure, the ventilation, skid resistance and dust prevention of the floor can be effectively achieved, the structure design is quite novel, besides the disassembly, assembly and replacement are convenient, the cost is saved, and the service life is longer. 本发明公开了种镂空复合地板，包括基座，