Nanoporous　Ag　ribbons　were　prepared　by　electrochemical　dealloying　of　the　melt-spun　Cu80-XAg20SiX(X　=　5,　10,　15,　in　mol%)　alloys　in　0.5M　CuSO4aqueous　solution　at　room　temperature.　The　Cu　and　Si　elements　in　the　precursor　alloys　could　be　removed　almost　during　dealloying.　The　pores　and　ligaments　of　the　dealloyed　Cu-Ag-Si　alloys　distributed　throughout　the　cross　section　of　the　ribbons.　The　nanoporous　Ag　were　refined　evidently　with　the　addition　of　Si　in　the　precursor　alloys.　The　pores　of　the　nanoporous　Ag　prepared　from　the　Cu70Ag20Si10alloy　were　refined　to　∼40　nm　and　the　ligaments　with　an　average　size　of　∼100　nm　showed　granular　shape.　The　nanoporous　Ag　exhibited　strong　enhancement　of　the　surface-enhanced　Raman　scattering　(SERS)　due　to　the　refinement　of　microstructures.