We　demonstrate　optical　polarization　devices,　consisting　of　gold　nanowires,　which　are　based　on　the　strong　polarization　dependence　of　the　particle　plasmon　resonance　of　the　gold　nanowires　and　the　resonance　of　the　waveguided　grating　structures.　Using　a　layer　of　indium　tin　oxide　underneath　the　gold　nanowires　as　the　waveguide,　we　achieved　tunable　polarization　band-pass　and　band-suppression　filters　in　the　transmission　and　reflection　configuration　with　a　bandwidth　less　than　20　nm　at　full　width　at　half　maximum　(　FWHM)　in　the　visible　spectral　range.　Then,　using　side-input　geometry　for　multiplying　the　absorption　by　the　particle　plasmon　resonance,　we　achieved　a　strong　band-suppression　polarizer　with　an　extinction　ratio　of　up　to　145.　These　polarization　devices　can　be　used　directly　in　optical　engineering,　and　potentially　provide　alternatives　to　conventional　devices　in　some　special　applications.　A　simple　solution-processible　fabrication　technique　enables　high　quality　and　large　area　(＞　10　x　10　mm(2))　production　of　these　polarizers.