This paper presents fabrication and electrical characterization of barrier type TiO2 metal-insulator-metal (MIM) capacitor using anodization. Polarization process, conduction mechanisms, and structural properties are studied in detail. We found that the anodization voltage played a major role in electrical and structural properties of the thin film. The barrier type anodic TiO2 is suggested as a dielectric material for high-performance MIM capacitors. © 2012 Elsevier Ltd.