Titania　oxide　nanotubes　were　successfully　grown　from　a　clean　titanium　plate　via　the　direct　anodic　oxidation　method.　The　as-prepared　nanotubes　were　amorphous　and　were　crystallized　at　300　degrees　C,　which　was　identified　by　X-ray　diffraction　(XRD)　patterns.　Their　microstructures　and　morphologies　were　investigated　by　field　emission　scanning　electron　microscopy　(FESEM).　The　photoelectrochemical　properties　of　the　annealed　nanotubes　thin　films　coupled　with　304　stainless　steel　(304　SS)　were　studied　on　IM6e　instrument.　A　significant　photoelectrochemical　response　effect　was　observed.　The　open-circuit　potential　of　the　titania　nanotubes　films　coupled　with　304　SS　shifts　negatively　in　the　presence　of　simulated　solar　light　(from　a　metal　halogen　lamp)　and　the　polarization　curves　reveal　that　titania　nanotube　thin　films　have　photocathodic　protection　properties　of　304　SS.　(c)　2006　The　Electrochemical　Society.