ZnO　flower-rod　ordered　arrays　(ZFRs)　were　synthesized　via　a　liquid　phase　method,　and　the　ZFRs　were　sensitized　with　Ag　and　Ag2Se　quantum　dots　(AA-ZFRs)　by　ion　exchange.　Scanning　electron　microscopy　(SEM),　powder　X-ray　diffraction　(XRD),　energy　dispersive　X-ray　spectra　(EDS),　and　transmission　electron　microscopy　(TEM)　were　used　to　characterize　Ag　and　Ag2Se　sensitized　ZnO　flower-rods　(AA-ZFRs).　And　the　photoelectrochemical　properties　and　quantum　efficiency　were　also　investigated.　The　results　indicate　that　the　optical　absorption　of　AA-ZFRs　can　be　controllably　tuned　to　cover　almost　the　entire　visible　spectrum.　The　sensitization　with　Ag-Ag2Se　restrains　the　recombination　of　photogenerated　electron-hole　pairs　due　to　the　heterojunction　between　Ag-Ag2Se　and　ZFRs,　and　enhances　the　incident　photon-to-electron　conversion　efficiency.　Thus,　the　as-prepared　AA-ZFRs　exhibit　a　higher　open-circuit　photovoltage　(-0.77　V　Ag/AgCl)　and　short-circuit　photocurrent　(0.64　mA.cm(-2))　under　visible　light.