This study aims to analyze the effect of electrodes and catalysts on the production of hydrogen resulted . through the electrolysis of seawater from the mangrove area. The electrolysis process was carried out by applying a constant voltage of 12 volts to convert electrical energy into chemical energy that occurs in the electrolysis cell. Meanwhile, graphite and stainless steel were used as electrodes with various catalyst of NaOH and HCl. The results indicated that the electrolysis of seawater from the mangrove area with electrode of graphite and HCL catalyst produced a larger volume of hydrogen and longer electrode lifespan compared to the use of stainless steel electrodes. On the other hand, the use of NaOH catalyst and carbon electrodes produces smaller hydrogen volume and shorter electrode lifespan than the use of stainless steel electrodes. Generally, it was identified in this study that the use of graphite electrode and HCl catalyst as well as the use of stainless steel and NaOH catalyst can be used as alternative method on producing hidrogen through electrolysis of seawater from mangrove area.