Building gypsum artificial underground water-resisting layer

The utility model relates to the technical field of underground water insulation, and discloses a building gypsum artificial underground water insulation layer which comprises a gypsum board, a gypsum leveling layer is arranged on the bottommost layer of the gypsum board, a cross-shaped gauze element is arranged on the upper surface of the gypsum leveling layer, and a first non-woven fabric impermeable layer is arranged on the upper surface of the cross-shaped gauze element. The upper surface of the first non-woven fabric impermeable layer is provided with an impermeable layer, the upper surface of the impermeable layer is provided with a second non-woven fabric impermeable layer, the upper surface of the second non-woven fabric impermeable layer is provided with a gypsum layer, the upper surface of the gypsum layer is provided with a waterproof plate, and the upper surface of the waterproof plate is coated with waterproof paint. According to the utility model, the cement has better water resistance, and the