Polyaniline (P ANi) films have been electrochemically synthesized on stainless steel 316 L in H2SO4 acid solution using cyclic voltammetry. On the CV curve there are three oxidative potential regions. Adding nano titanium oxide in the solution affects strongly the synthesis process due to the formation of PANi/TiO2 nanocomposite. Kinetics of the synthesis reaction was studied basing on variation of the total anodic polarisation charges quantity Q, redox peaks parameters as anodic peak current Ipa and electric quantity Qp , and derivation dJ/dC for the entire synthesis ranges, in regard to the nano titanium oxide concentration. It was found that the kinetics of the synthesi's reaction of the nanocomposite depends closely on the [TiO2] from 0 g/l to 5 g/l.