Silver　nanowire　(Ag　NW)　transparent　conductive　electrodes　with　high　conductivity　and　optical　transmittance　are　fabricated.　Then,　WO3　films　are　deposited　on　Ag　NW　electrodes　by　an　electrochemical　deposition　method.　The　WO3/Ag　NW　films　act　as　obvious　optical　modulators　in　the　visible　region.　More　importantly,　the　WO3/Ag　NW　films　have　distinct　advantage　on　NIR　modulation　over　conventional　WO3/ITO　electrode.　Meanwhile,　the　WO3/Ag　NW　films　own　high　electrochromic　efficiency　of　86.9　cm(2)　C-1　at　NIR　region　of　1100　nm.　Furthermore,　electrochromic　devices　(ECDs)　based　on　Ag　NW　substrates　are　fabricated　in　this　study,　which　exhibit　excellent　cycling　stability　and　distinct　modulation　of　near-infrared　light　compared　with　ITO-based　ECDs.　This　work　is　the　first　study　that　reports　the　application　of　Ag　NW-based　electrochromic　films　and　electrochromic　devices　in　modulation　of　NIR　light.　It　exhibits　bright　prospects　that　the　electrochromic　materials　deposited　on　Ag　NW　electrodes　may　find　potential　application　in　thermal　control　and　emission　detectors　for　spacecraft.