The invention discloses a crystalline-silicon double-glass photovoltaic assembly comprising a top glass layer, an upper PVB adhesive film layer, a solar cell sheet, a lower PVB adhesive film layer anda back glass layer that are arranged successively from top to bottom. The front side of the top glass layer is plated with a self-cleaning film and a selective absorption optical film; and the back glass layer is plated with a selective absorption optical film. With the crystalline-silicon double-glass photovoltaic assembly, the part, being utilized by the cell sheet to be converted into electricenergy, of sunlight entering the assembly is increased substantially; entrance of light waves that can not generate a photoelectric effect to increase the temperature of the cell into the assembly isreduced obviously; the operating temperature of the solar cell is reduced effectively; the conversion efficiency of the photovoltaic assembly is increased; and the generating capacity of the crystalline-silicon double-glass photovoltaic assembly is enhanced.