In　this　paper,　we　demonstrate　a　simple　solution-processed　route　to　fabricate　flexible　blue　organic　light　emitting　diodes　(OLEDs)　with　graphene　as　its　bottom　electrode　on　flexible　polyethylene　terephthalate　(PET)　substrate.　The　device　structure　consists　of　Al/Zinc　oxide　(ZnO)/poly(9,9-dioctylfluorene)　(PFO)/poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)　(PEDOT:PSS)/Graphene/PET.　The　PFO　as　a　blue　emitter　layer　and　the　ZnO　nanoparticles　as　electron　transport　layer　were　deposited　by　using　spin-coating　technique.　The　flexible　blue　OLEDs　based　on　graphene　anode　exhibits　a　stable　deep　blue　emission　with　a　CIE　color　coordinates　of　(0.17,　0.17).　This　study　suggests　a　simple　fabrication　approach　to　construct　graphene　electrode-based　flexible　blue　organic　light　emitting　diodes.　(C)　2015　Elsevier　Ltd.　All　rights　reserved.