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To substitute the non-regular nano-crystalline semiconductor for a novel kind of ordered microstructure is a very important aspect in the domain of dye-sensitized solar cell.One of the researching hotspots is the highly-ordered TiO2 nanotube architecture.As a new type of titania nano-material,titania nanotube arrays have drawn extraordinary attention due to its distinctive morphology,notable photoelectrical and hydro-sensitive performance.At 100% sun the new kind of TiO2 nanotube arrays solar cell exhibits an overall conversion efficiency of 5.44%.This paper introduces the preparation methods of titania nanotube arrays,the existing problems and recent progress in titania nanotube arrays solar cell.