In this work, TiO2 nanoparticles were modified by small amount addition of polythiophene to improve the dispersibility of TiO2 nanoparticles and enhance the photocatalytic activity of composites. Also, effect of surfactant onto properties of PT/TiO2 nanocomposites was investigated using anionic, cationic and nonionic surfactants. The structural, crystallographic, morphological and thermal properties of the nanocomposites were investigated by using SEM, FTIR, XRD and DTA/TG techniques. The electronic conduction aspects of the produced composites were investigated depending on the temperature and the surfactant type by measuring DC electrical conductivity. The observed consequences of the conductivity were compared to the measured results of the SEM, XRD and DTA/TG. The type of electrical conductivity behavior and the reason/reasons of the different conduction performances of the fabricated composite materials were discussed.