Abstract: With the development of technology, a variety of new organic compounds are emerging. It is difficult to handle many of the organic compounds by the traditional physical and chemical methods, and it is easy to cause the secondary pollution, which requires us to find an effective way to deal with these refractory organics. Load type porous titanium dioxide is a kind of good photocatalystic which is stable and high optical efficient and is easy to be recycled and does not produce secondary pollution, etc. Therefore, it is widely known. 100μm titanium beads is used as raw materials, in vacuum sintering porous titanium preparation conditions, adopting Micro-Arc Oxidation (MAO) method, sodium solution is used as the electrolyte, titanium dioxide coating is prepared on porous titanium matrix. By means of XRD, SEM, and Raman test, titanium dioxide coating is characterized. The results show that the titanium dioxide coating of crystal is sharp titanium ore, its morphology has a characteristic micro-arc oxidation porous structure, and the size of aperture is 1μm—2μm. Under the condition of UV light, the degradation ability of titanium dioxide coating to Rhodamine B solution is measured, it is found that the after 90 minutes of ultraviolet ray radiation, the Rhodamine B degradation rate reaches at 80%.