Abstract: A new technique of producing H₂ and ZnS from H₂S was studied with the electrochemical dissolution-precipitation method. The results showed that in the absorption reactor, where the temperature was 25～30℃, and the rate of stirring was 100 r•min^-1, the absorption rate of hydrogen sulfide (5%～100%) in one processing could reach 99.9% and high quality of zinc sulfide could be obtained. At the same time, in the electrolysis reactor, pure hydrogen could be obtained under the temperature 25～30℃, electricity voltage 0.5 V and electricity consumption 1.2 kW•h•m^-3H₂.