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Using butyl titanate as titanium source and Fe(NO₃)₃.9H₂O as iron source, Fe/TiO₂ nano powders were prepared by sol-gel method and Fe/TiO₂ nano fibers were prepared by sol-electrostatic spinning technology. The photocatalytic activity and practicability of TiO₂ nanomaterials were improved from the aspects of material modification and morphology improvement. By XRD, SEM and TEM, the photocatalytic activity of Fe/TiO₂ nano-materials in visible light region was investigated. The effect of calcination temperature and iron content on photocatalytic performance of Fe/TiO₂ nano-materials was analyzed. The results show that the addition of iron and the improvement of the morphology are helpful to improve the photocatalytic performance of TiO₂.