Direct current (d.c.) electrical properties of bis(4-diethylannodithiobenzil)nickel and stearyl alcohol mixed Langmuir-Blodgett films (BDN-SA LB films) were measured using multilayer LB films deposited on planar interdigital electrodes under various pressure and temperature conditions. The results show that the conductivity of the LB films is strongly influenced by the pressure and temperature. The activation energy is estimated to be approximately 0.56 eV, close to the 0.50 eV value of the bulk material. The correlation between the electrical conductivity of the LB films with atmosphere pressure is discussed.