The utility model discloses a terrestrial heat type waterproof multilayer floor, which relates to the technical field of floors, and comprises floor main bodies, splicing mechanisms and reinforcing mechanisms, the floor main bodies are multilayer composite structures, the splicing mechanisms are arranged between two adjacent floor main bodies, the reinforcing mechanisms are arranged in the splicing mechanisms, and the reinforcing mechanisms are used for preventing the splicing mechanisms from being separated. The two floor main bodies are spliced together through the splicing mechanism, and then through the arrangement of the reinforcing mechanism, the splicing mechanism is not prone to being separated in the using process of the floor main bodies, so that gaps are not prone to occurring between adjacent floors, and when water is accumulated on the upper surfaces of the floors in the using process, the floors are not prone to falling off. Water is not easy to permeate the floor to contact with the ground heat, so that the waterproof performance of the floor is improved.