NOVELTY - A solar cell module (100) comprises crystalline-silicon type solar cell (20), a resin layer (41,42) and cover glass (30) sequentially positioned on a back substrate (10). The main surface of the cover glass exists in roughened state at the side of resin layer. The cover glass is a soda lime-type glass composition comprising silicon dioxide, aluminum oxide, lithium oxide, sodium oxide, potassium oxide, magnesium oxide, calcium oxide, total of strontium oxide and zinc oxide, zirconium oxide, sulfur trioxide, antimony oxide, iron oxide and titanium oxide.    USE - Solar cell module.    ADVANTAGE - The solar cell module has improved transmission rate of beam having wavelength enable to produce high incident photon-to-current conversion efficiency in solar cell when irradiated with light in ultraviolet ray wavelength range.    DETAILED DESCRIPTION - A solar cell module comprises a crystalline-silicon type solar cell, a resin layer and a cover glass sequentially positioned on a back substrate. The main surface of the cover glass exists in roughened state at the side of resin layer. The cover glass is a soda lime-type glass composition comprising (in mass%) silicon dioxide (65-80), aluminum oxide (0-5), lithium oxide (0-5), sodium oxide (5-18), potassium oxide (0-10), magnesium oxide (0-10), calcium oxide (5-15), total of strontium oxide and zinc oxide (0-5), zirconium oxide (0-5), sulfur trioxide (0.05-0.5), antimony oxide (0-1), total iron oxide (based on ferric conversion value) (0.001-0.04), total titanium oxide (based on titanium conversion value) (0.075-1). The total content of lithium oxide, sodium oxide and potassium oxide is 10-20 mass%, and total content of magnesium oxide, calcium oxide and strontium oxide in soda lime-type glass composition is 5-15 mass%. INDEPENDENT CLAIMS are included for the following:    (1) cover glass for crystalline-silicon type solar cell; and    (2) glass substrate for thin film type solar cell.    DESCRIPTION OF DRAWING(S) - The drawing shows the perspective view of solar cell module.    Back Substrate (10)    Crystalline-silicon type solar cell (20)    Cover glass (30)    Resin layer (41,42)    Solar cell module (100)