The utility model discloses a solar cell back film, which is sequentially provided with an easy-to-stick layer, an insulation layer, a weather-resistant layer, and a scratch-resistant layer. The solar cell back film is advantageous in that the outer side of the weather-resistant layer is provided with the scratch-resistant layer, and then the wear caused by the outside wind and sand can be effectively prevented, and the wear-resistant layer can be prevented from being damaged by the wind and sand, and therefore the performance of the wear-resistant layer cannot be degraded by the influence of the outside severe environment.