The invention discloses a solar cell backboard film, and the solar cell backboard film sequentially comprises an internal surface layer, a core layer and an external surface layer from the inside to the outside. The internal surface layer is bound with the core layer through a binding film, and the core layer is bound with the external surface layer through a binding film. The internal surface layer and the external surface layer are weather-resistant fluorine-containing polymer films, and the core layer is a moisture-resistant film. The weather-resistant fluorine-containing polymer films areprepared by polytrifluorochloroethylene, epoxy fluorosilicone oil, and 4,6-bis(2,2,2-trifluoroethoxy)-1,3,5-triazin-2-amine. The binding films are prepared by epoxy vinyl ester resin, silane diol salicylate and isopropyl alcohol solution of chloroplatinic acid with the mass fraction of 2%. The moisture-resistant film is stretched bidirectionally, and is made of polyethylene glycol terephthalate (BOPET). The solar cell backboard film provided by the invention is more excellent in weather resistance, blocking performances and ultraviolet aging resistance.