Iodine(i)　doped　ZnO　nanoarray　films　(ZnO/I-X)　were　prepared　on　a　silicon　wafer　by　the　in　situ　growth　method.　The　structure　and　morphology　of　the　samples　were　tested　by　XRD,　SEM,　DRS.　The　hydrophobic　properties　were　characterized　by　the　water　contact　angle　on　the　surface.　The　results　show　that　the　doped　iodine　extended　the　light　absorption　range　of　the　ZnO　nanofilm　and　the　nanoarray　film　(ZnO/I-X)　are　super　hydrophobic.　The　antimicrobial　activity　of　iodine(i)-doped　ZnO　nanofilms　towards　E.　coli　under　visible　light　illumination　is　much　higher　than　that　of　the　ZnO　film.　In　addition,　ZnO/I-3　exhibits　the　best　antimicrobial　activity.