Abstract: A back side protective sheet disposed on a back side of a solar cell module and including a first film containing linear low-density polyethylene having a density greater than or equal to 0.91 g/cm3 and less than or equal to 0.93 g/cm3 and an inorganic ultraviolet absorbing agent; and a second film being laminated on the first film, with a urethane adhesive layer being interposed therebetween. An average particle diameter of the inorganic ultraviolet absorbing agent is greater than or equal to 0.1 ?m and less than or equal to 5 ?m. The first film contains the inorganic ultraviolet absorbing agent greater than or equal to 0.1% by mass and less than or equal to 30% by mass.