Abstract: Stannous octoate was prepared by electrochemical method instead of conventional double decomposition method.Effects of electrolyte，agitation speed，current density，voltage，temperature，electrode materials，anti-oxidants，and many other factors on the preparation of stannous octoate were investigated，and the optimum process parameters were obtained.Experi- ment results show that，taking 6 mol/L sodium chloride as electrolyte，metal tin as anode，and titanium plate as cathode，under the conditions of anode current density at 100~120 A/m2，cathode current density at 800~1 000 A/m2，agitation speed of 100 r/min，electrolyte temperature at 60~70 ℃，while adding some antioxidant，stannous octoate product containing 28.32%（mass fraction） Sn2+ and 29.23%（mass fraction） total Sn can be obtained.

Key words: electrochemical method, stannous octoate, metal tin, double decomposition method