Abstract: AC electrical properties were studied using the AC impedance technique. The electrical properties of thin films made of Poly (Ethylene Oxide) (PEO) dispersed with dopants fixed amount of carbon black (0.1 wt.%) were used in this study. The prepared films by casting method have been electrically. The present study has studying the variation of AC electrical conductivity with temperature in the range (30-55°C) at frequency 200 kHz for (PEO) with doped 0.1wt.% carbon black as compared to that case of the un doped (PEO) film and determined of some physical quantities and parameters as AC conductivity, impedance, dielectric constant, dielectric loss. The observed values of the impedance (Z), dielectric constant (ε’), dielectric loss (ε”) and AC-conductivity (σAC) showed temperature. It was found that the dielectric constant and dielectric loss of the prepared thin films increase with doped (0.1 wt.%) Carbon Black (CB) complexes and that it increase with temperature according to polarization processes.