Cu-doped　α-FeOOH　nanoflowers　(α-(Fe,　Cu)OOH)　were　successfully　prepared　with　a　facile　reflux　method.　The　as-obtained　products　were　characterized　by　using　XRD,　SEM,　UV-Vis　DRS　and　XPS,　and　their　catalytic　performances　were　evaluated　by　the　degradation　of　ciprofloxacin　with　H2O2　under　visible　light　(λ>420　nm)　irradiation.　The　results　show　that　the　incorporation　of　Cu　ions　into　α-FeOOH　unit-cell　led　to　the　change　of　surface　energy　and　the　light　absorption　edge　in　visible　light　region　shifted　towards　longer　wavelength.　The　Cu-doping　improved　the　activity　and　stability　of　α-FeOOH,　and　the　ciprofloxacin　(30　mg·L-1)　was　completely　degraded　in　180　min　when　the　concentration　of　H2O2　was　0.15　mol·L-1　and　the　dosage　of　α-(Fe,　Cu)OOH　was　0.60　g·L-1.　The　hydroxyl　radical　(·OH)　was　important　reactive　oxygen　species　during　the　heterogeneous　Fenton-like　reaction,　and　the　presence　of　Cu+/Cu2+　not　only　affected　the　generation　rate　of　·OH　but　also　affected　the　total　yield　of　·OH.　©　2016,　Science　Press.　All　right　reserved.