Abstract: Thin films of TiO₂ nanotube arrays for the preparation of dye sensitized solar cells were fabricated by anodic oxidation method in different electrolyte solution. The morphology of the film were observed by scanning electronic microscope（SEM）,and to explain the formation mechanism of TiO₂ nanotubes arrays. The illumination open circuit potential were characterized by German IM6 ex electrochemical workstation. The I-V curve were characterized by Newport solar simulator,Keithley2400 AVO meter. The results show that TiO₂ nano tube diameter was d_{0. 36}＞ d_{0. 24}＞ d_{0. 12},in 0. 12% HF,0. 24% HF and 0. 36%HF solution. The generation of TiO₂ nanotube arrays are divided into three stages: the formation stage of the barrier layer,the formation stage of the nanotubes and the stability of the nanotubes. The TiO₂ nanotube film light open circuit potential difference V_oc= 0. 074 V at 20 V in alcohol 0. 88wt% NH₄ F water mixed solution for 4h,assembled into DSC V_oc= 0. 66 V,I_sc= 2. 1m A,FF = 0. 38,η = 0. 53%.