As the transparent conductive film, graphene shows great development potential and broad application prospects in future flexible electronic and optoelectronic devices, such as touch screen, organic light-emitting diodes (OLEDs), and organic photovoltaic (OPV) cells, due to excellent mechanical, optical and electrical properties. However, due to the influence of large sheet resistance (Rs), work function (WF) mismatch, surface roughness, the performance and stability of optoelectronic devices based on intrinsic graphene films are very poor, which seriously hinders the development and application of graphene in flexible optoelectronic devices. The recent research progress on the application of graphene films as transparent conductive electrodes (TCEs) in OLEDs is reviewed. Methods were also concluded including graphene doping, and surface WF modification, and clean and non-destructive transfer as well as optimization of the device structure in order to further improve the device performance. At last, the technical bottlenecks of graphene films as TCEs in OLEDs were analyzed, and the future of this field is prospected.