The　graphene　(GP)　and　multi-walled　carbon　nanotubes　(MCNTs)　hybrid　nanostructure　emitter　was　constructed　by　a　larger　scale　electrophoretic　deposition　(EPD)　method.　The　field　emission　(FE)　performance　of　the　hybrid　emitter　is　greatly　improved　compared　with　that　of　only　GP　or　MCNTs　emitter.　The　low　turn-on　electric　field　(EF),　the　low　threshold　EF　and　the　reliability　FE　properties　are　obtained　from　the　hybrid　emitter.　The　better　FE　properties　result　from　the　improved　electrical　properties.　For　further　enhancement　FE　of　hybrids,　Ag　Nanoparticles　(NPs)　were　decorated　on　the　hybrids　and　FE　characteristics　were　also　studied.　These　studies　indicate　that　we　can　use　the　hybrid　nanostructure　to　improve　conductivity　and　contact　resistance,　which　results　in　enhancement　of　the　FE　properties.　(C)　2014　Elsevier　B.V.　All　rights　reserved.