An ion chromatographic method was applied to the analysis of photographic developing solutions. An electric conductivity detector, dilute Na₂CO₃ eluent, a separating column with anion exchange resin of very low capacity and a stripping column with cation exchange resin of high capacity were adopted in the apparatus of ion chromatography. We have succeeded in preparing the suitable anion exchange resin of very low capacity for the analysis of anionic components in photographic processing solutions. By this technique, satisfactory analytical results were obtained with respect to Cl^-, Br^-, SO₄^2- and SO₃^2- in some developing solutions.