The invention discloses a foldable moving light steel board house with refrigeration and heat preservation functions. The folding movable light steel board house comprises a board house body. The board house body comprises a bottom plate and a top plate. Rabbets are formed in two lateral surfaces of the top of the bottom plate. Through movable connection of the bottom plate, the top plate, an upper right baffle, a lower right baffle, an upper left baffle and a lower left baffle by hinges, and a hoisting hook mounting at the top of the top plate, the board house can be pulled open by the hoisting hook and fixed by a fixing rod when in use. The board house is foldable and is convenient to store and transport. Through two refrigeration mechanisms arranged on the surface of the upper right baffle, when temperature is high and hear dissipation is required, movable plates on the refrigeration mechanisms can be pushed to open the movable plates, and further ventilation and refrigeration are achieved. Heat preservation layers, anti-deformation layers and water-proof layers are arranged on the bottom plate, the top plate, the upper right baffle, the lower right baffle, the upper left baffleand the lower left baffle, and therefore the effects of heat preservation, deformation and water resistance are excellent when the board house is in use.