In this study, we fabricated anisotropic thin film of titanium dioxide by bideposition technique. In order to control the column angle, we used the asymmetric deposition angle and the pitch of thicknesses. In optical properties, it can enhance the birefringence and broaden angular spectrum of over 80% polarization conversion. In the experiment, we used electron beam evaporation to fabricate anisotropic thin film of titanium dioxide which is combined with different type of deposition angles and the major indices are measured by polarization conversion. We found that asymmetric deposition angle changed from large to small at the same pitch of thicknesses, it caused the column angle changed from large to small and the property of birefringence enhanced from large to small. On the other hand, the different pitch of thicknesses changed from small to large and the property of birefringence enhanced from small to large at the same asymmetric deposition angle. Using this database, it will be designed and applied for the optical element on the wide angle polarization conversion in the future.