Conducting polyaniline based paint were applied on reinforcing steel bars in concrete and compared with performance of conventional paints. from the experiment conducted in 3.5% and 6% nacl solutions with a constant voltage supply of 4v, it was found that current drop initially was 0.016 ma in case of epoxy , 0.016ma in conducting polyaniline based paint coating, 0.05 ma in case of the bare sample , when immersed in a 3.5% nacl solution. after 16 days, it was increased to 0.05ma in case of epoxy coated sample, 0.026ma in case of the polyaniline coated sample, 0.92ma in case of bare sample. and when the samples were immersed in a 6% nacl solution , current drop initially was 0.04ma in case of epoxy , 0.035ma in conducting polyaniline based paint coating, 0.095 ma in case of the bare sample. and after 16 days, it was increased to 0.072ma in case of epoxy coated sample, 0.048ma in case of the polyaniline coated sample, 0.12ma in case of bare sample. it has been found that the conducting polyaniline based paints protect reinforcing steel bars in concrete from chloride medium and their performance is better than conventional epoxy based paints in the same medium.