The invention belongs to the technical field of a floor structure and in particular relates to a geothermal floor. The energy-saving and environment-friendly type nano geothermal floor provided by the invention comprises a base material layer, wherein a plurality of rapid heating coating layers are arranged above the base material layer; materials of each rapid heating coating layer comprise a graphene nano material and oil paint; the mass ratio of the graphene nano material to the oil paint is (1:10000) to (1:1200); a moisture-proof film layer is arranged under the base material layer; an MUF adhesive layer is arranged between the base material layer and each rapid heating coating layer; each rapid heating coating layer further comprises a photocatalyst antibacterial material; and the photocatalyst is a mixture formed by mixing a nano-grade TiO2 photocatalyst material and nano silver at the mass ratio of (10-20):(2-4). With the adoption of the geothermal floor which has a specific structure and is made of the specific material, the geothermal floor has the advantages of high temperature rising speed, reduction of heat accumulation, and reduction of energy source consumption.