The composite ceramics, Bi 0.5 Na 0.5 TiO 3 −xCeO 2 (x=0, 0.05, 0.10, 0.15) with a general chemical composition (Bi 0.5 Na 0.5 )(Ti 1−x Ce x )O 3 were fabricated by using a solid state reaction ceramic technology. The detailed structural analysis using x-ray diffraction data exhibits the formation of composites of Bi 0.5 Na 0.5 TiO 3 (BNT) and CeO 2 in rhombohedral and cubic phase respectively. The Fourier transform infrared spectroscopy spectrums confirm the formation of compounds through the occurrence of characteristic peak corresponding to Ce-O, Ti-O and Bi-O bonds. With the increase in CeO 2 content in the composite, the optical band gap decreases from 2.97 eV (for x=0) to 2.45 eV for the sample (for x=0.15). The impedance analysis confirms the contribution of grains only to the polarization and conduction processes. Two phase change corresponding to ferroelectric to antiferroelectric, and then to the paraelectric is observed at around 350°C and 470°C respectively. The addition of CeO 2 in BNT significantly enhances the dielectric and ferroelectric properties with the decrease in loss tangent.