Solar cell is a kind of inexhaustible energy, and its development in the commercial field was limited owing to its low efficiency seriously. In recent years, the synthesis and application of graphene and its derivatives have been rapidly developed. Due to its excellent electrical, mechanical and optical properties, graphene and its derivatives are expected to be applied to improve solar cell efficiency and replace the traditional transparent conductive oxide. In this paper, the application of graphene as conductive electrode, carrier transport material and stabilizer in solar cell is reviewed.