TiO 2 /Poly(methyl methacrylate) (PMMA) bilayered films have been prepared by spin coating technique on the glass substrate. The nanorod-structured TiO 2 prepared by a coprecipitation method was used. The structure and morphology were tested by X-ray diffraction (XRD), scanning electron microscopy, and atomic force microscopy (AFM). The optical properties and the anti-reflection (AR) coating performance were evaluated by UV-Vis spectrometer. The XRD pattern has shown that the TiO 2 particles have the nanorods structure and the rutile phase. The AFM analysis showed that the layer of TiO 2 nanorods has formed a colloidal crystal with an amorphous structure having a smooth surface. Based on the absorption spectra of a single layer TiO 2 , the optical band gap (E g) between 3.65-3.70 eV and the Urbach energy (E u) between 204-255 meV can be determined. The maximum transmittance of TiO 2 /PMMA bilayered film at a normal incident light can reach up to 98.5%.