Layered ceramic oxide (LiFeVO4) has been prepared by a standard solid-state reaction technique. LiFeVO4 has orthorhombic crystal structure whose dielectric and electrical modulus properties were studied over a range of frequency (100 Hz-1 MHz) and temperature (298-598 K) using complex impedance spectroscopy (CIS) technique. Dielectric results suggest dielectric relaxation in the material. The presence of non-Debye type conductivity relaxation in the material has been confirmed by complex electrical modulus analysis. The activation energy calculated from electric modulus spectra is 0.237 +/- 0.005 eV. (C) 2007 Elsevier B.V. All rights reserved.