LiFeO2 layered oxides were synthesized using an enhanced solid-state synthesis technique. Rietveld refinement of the crystal structure revealed that the synthesized materials adopt a cubic system with the Fm-3m space group. The morphological study of our compound was carried out using a scanning electron microscope (SEM). The sample consists of small primary particles on the microscopic scale with a size between 0.20 and 0.75 µm. The vibrational investigation carried out by IR spectroscopy demonstrated the presence of FeO6 and LiO6 groups.The semiconductor characteristics of the compound were verified by optical measurement, indicating a bandgap of approximately 2 eV. The dielectric properties of the material were evaluated over a frequency range of 0.1 to 107 Hz at temperatures ranging from 333 K to 523 K.The real part of the dielectric permittivity suggests a high dielectric constant at low frequency and indicates the existence of both space charge and dipolar polarizations.The frequency-dependent conductivity was interpreted according to Jonscher's law. The variation of the power law exponent with temperature suggests that the conduction behavior of the LiFeO2 compound can be attributed to the large superimposed polaron tunneling (OLPT) model with activation energy Ea = 0.26 eV.