In this paper, the biomimetic micro- and nanotopography was fabricated in one step on the micron scale spherical "template" of SLM-Ti substrate by anodic oxidation technology. The results show that the TiO₂ nanotubes arrays on SLM-Ti substrate without UV irradiation or high-temperature treatment exhibit superhydrophilic property after being modified with 1H, 1H, 2H, 2H-perfluorooctyltriethoxysilane molecules. The morphology and static/dynamic water contact angle of POTS modified CP-TiO₂ and SLM-TiO₂ were compared and analyzed. The measured static contact angles of CP-TiO₂ and SLM-TiO₂ are ?149° and ?163.8° respectively, indicating that both of them are close to the superhydrophobic standard. However, the dynamic contact angle is the more important factor when self-cleaning, waterproof and anti-fouling characteristics are required. The results show that the water droplet was pinned on the CP-TiO₂ surface when the surface was tilted vertically, while the droplet on SLM- TiO₂ surface rolled off quickly within 155ms when the surface was tilted less than 1°.