Abstract: Hydrogen production from hydrogen sulfide, a byproduct in oil refinery has been a widely studied problem in recent years and the kinetic studies in this field is also important for the process to be used commercially.A macroscopic kinetic equation was derived,after considering all factors affecting electrode reaction and investigating the process of mass transfer in actual conditions pilot-scale. The kinetic equation was tested in pilot plant and found in agreement with experimental data.The concentration of hydrogen ion, voltage on electrobath and the temperature of electrolyte were the main factors affecting hydrogen production from indirect electrolysis of hydrogen sulfide and the voltage on electrolytic cell took a most important part in the process. The equation given could be used as theoretic basis for later studies in increasing the rate of hydrogen production.