SnS　films　were　cathodically　electrodeposited　on　ITO　glass　substrates　from　aqueous　solution　containing　SnSO4　and　Na2S2O3　with　pH　=　2.7　and　[Sn2+]/[S2O3]=　1/5　by　varying　the　deposition　potential　(E)　from　-0.60　to　-1.1V　vs　SCE.　The　experiments　showed　that　the　near　stoichiometric　SnS　films　were　synthesized　at　-　0.72　∼　-　0.75　V　vs　SCE.　The　SnS　films　were　characterized　by　X-ray　diffractograms,　microstructure　and　composition　analysis,　and　their　optical　and　electrical　properties　were　studied.　The　SnS　film　has　polycrystalline　with　orthorhombic　structure,　and　has　good　uniformity　with　small　grain　size.　Its　direct　band　gap　was　estimated　to　be　l.31　eV　from　the　optical　measurement,　close　to　the　bandgap　of　bulk　SnS　(1.30　eV).　The　film　had　p-type　conductivity　with　an　electrical　resistivity　of　the　order　of　10-3　Ω·cm.