The solid-solid interactions between cobalt and ferric oxides to produce CoFe2O4 were followed up using XRD investigation. The effect of Li2O-doping on the ferrite formation was also studied. The electrical and dielectric parameters of pure and doped mixed solids precalcined at 1273 K were measured using d.c and a.c instruments. The dopant concentration was varied between 0.5 and 6 mol% Li2O. The results obtained revealed that Li2O doping much enhanced the ferrite formation due to an increase in the mobility of the reacting species. The addition of the smallest amount of Li2O (0.5 mol%) resulted in measurable variations in the electrical constants (rho, E-a, epsilon', epsilon " and tan delta). Resistivity increased upon increasing the dopant concentration up to 1.5 mol% exceeding the values measured for the undoped sample. Furthermore, the presence of 6 mol% Li2O brought about a significant decrease of electrical resistivity. Also, the activation energy decreased with increasing the dopant concentration. The dielectric constant behaves according to epsilon = const. 1/rho(1/2) The Li2O-doping modified the values of different dielectric constants, the change in these constants was found to be strongly dependent on the amount of Li2O added. These results have been discussed in terms of the potentiality of Li2O in increasing the mobility of the reacting species involved in the ferrite formation.