Ag　were　deposited　on　the　surface　of　carbon　nanotubes　(CNTs)　by　electroless　palting　method,　and　the　field　emission　properties　of　CNTs　electroless　plating　with　Ag　were　studied.　The　carbonyl,　carboxyl　and　hydroxy　groups　on　the　surface　of　CNTs　were　produced　by　oxidization　in　mixed　acid.　The　turn-on　field　of　CNTs　electroless　plating　with　Ag　was　0.19　V/μm,　and　the　maximal　emission　current　achieved　6　mA/cm2　at　the　field　of　0.37　V/μm,　which　the　field　enhancement　factor　was　calculated　as　25565.The　results　showed　that　the　improvement　of　emission　stability　was　attributed　to　the　electronic　and　thermal　conductivity　of　CNTs,　which　caused　by　Ag　electroless　plating　on　CNTs　surface.　The　proposed　CNT/Ag　cathodes　possess　good　field　emission　properties　and　have　potential　for　application　in　field　emission　displays.