Two　new　polymeric　iodoargentate　hybrids　induced　by　rare　earth　metal　complexes　and　conjugated　organic　cations,　{[Er(DMF)8][Ag6I9]}n　(1)　and　[(MMP)(AgI2)]n　(2)　(MMP　=　1-methyl-4-methylpyridinium)　were　obtained　by　the　routine　synthetic　reaction　and　structurally　determined.　In　compound　1,　a　(Ag6I9)n3n　chain　is　defined　by　edge-sharing　Ag6I12　units,　and　in　2,　the　(Ag2I4)n2　chains　are　constructed　by　edge-sharing　AgI4　tetrahedra.　CH...I　hydrogen　bonds　between　cations　and　iodoargentate　polyanions　contribute　to　their　structural　extension　from　1D　to　a　2D　layer　(for　1)　and　a　3D　network　(for　2).　The　UV/Vis　spectra　indicate　that　compared　with　2,　compound　1　exhibits　a　narrower　adsorption　scope　with　an　onset　at　about　360　nm,　and　it　has　a　much　wider　bandgap　of　about　3.50　eV.