The invention discloses a solar cell base film made from norbornene copolymer, which is characterized in that the base film is a single-layer structure which is made from norbornene copolymer, PC (polycarbonate), EVA (ethylene vinyl acetate) and fillings, or norbornene copolymer, POE (polyolefin elastomer), EVA and fillings, or norbornene copolymer, PP (polypropylene), EVA and fillings, or norbornene copolymer, eutectics of PET (polyethylene terephthalate) and fillings; and the base film of the single-layer structure is obtained by processing by the melt extrusion technology. The solar cell base film made from norbornene copolymer disclosed by the invention has the characteristics of resistance to heat and humidity, ageing, tear and hydrolysis, high barrier property to water vapor, high insulating property, high strength, stable size and easiness in processing and shaping, is good for protecting a solar cell module, and is capable of prolonging the service life of the solar cell.