Using　anodized　6061　aluminum　alloy　and　pure　aluminum　as　the　templates,　TiO2　thin　films　were　prepared　through　a　liquid　deposition　method.　The　TiO2　thin　film　fabricated　on　the　6061　aluminum　alloy　substrates　appears　as　bamboo-like　structures　with　holes,　whereas　that　prepared　on　anodized　pure　aluminum　substrate　has　one-dimensional　tubular　structures.　The　main　reason　is　that　magnesium　in　aluminum　alloy　is　oxidized　to　form　magnesium　oxide　which　has　a　lower　volume　than　that　of　Al2O3.　The　photocatalytic　ability　of　the　TiO2　films　prepared　on　the　aluminum　alloy　is　superior　to　that　of　the　films　fabricated　on　the　pure　aluminum.　TiO2　prepared　on　aluminum　alloy　has　higher　specific　surface　area　due　to　its　bamboo-like　structures　with　holes,　leading　to　better　performance　in　the　degradation　of　methylene　blue.　The　photocatalytic　performance　of　the　TiO2　by　the　degradation　of　aqueous　methylene　blue　is　in　accordance　with　the　first　kinetic　equation.　TiO2　films　deposited　in　0.1　mol/L　(NH4)　TiF6　solution　obtain　the　best　photocatalytic　performance　at　apparent　reaction　rate　of　0.00444/min.