The invention discloses a fully closed floor heating heat-insulation type concrete plant. The fully closed floor heating heat-insulation type concrete plant comprises a fully closed storage bin shed, a mixing station and a heating system mounted in the storage bin shed, wherein the mixing station comprises a dosing machine which is mounted in the storage bin shed and the dosing machine is provided with a heater; the storage bin shed is internally provided with a plurality of gravel storage bins; a floor heating groove is formed in the bin bottom of at least one gravel storage bin; a heat supply pipeline is laid in the floor heating groove; a steel cover plate covers the floor heating groove; the heating system comprises a boiler; the boiler is communicated with a water inlet of a heating pipeline through a first water outlet pipe; and the boiler is communicated with a water inlet of the heater through a second water outlet pipe. According to the fully closed floor heating heat-insulation type concrete plant disclosed by the invention, heating and heat insulation are carried out on gravels through a hot water pipe, so that construction requirements under cold weather are met and the whole storage bin shed does not need to be subjected to the heating and heat insulation, so that the cost is saved and potential safety hazards of a traditional storage bin shed that a combustion oven is used and fire disasters are prone to cause are avoided; and the storage bin shed with a fully closed structure is adopted so that phenomena that dust flies in the air and slurry flows on a whole ground are avoided and civilized construction is facilitated.