Electrocoagulation is a method that can be used to remove pollutants and nutrients from liquid waste. This method has been found for a long time but has exclusively recently been developed for wastewater treatment after a lengthy process. Electrocoagulation can remove colloidal materials, i.e., suspended solids, metals, and other dissolved solids in wastewater. Several studies have shown that electrocoagulation has been successfully operated in various industrial wastewaters, i.e., bakery, chocolate, cork boiling, olive, biodiesel, Etc. This review uses the systematic review scale mini-review method. Literature was collected from various databases using Harzing's Publish or Perris Software and analyzed by Mendeley Software. The results indicate that the electrocoagulation method has received excellent attention for development, i.e., the effectiveness and energy that must be consumed, and that research is evolving to show the best performance of electrocoagulation.