The purpose of this work is to study the existing electrochemical wastewater treatment methods. To achieve this goal, it is necessary to determine in which cases electrochemical methods of wastewater treatment are most often used; to study the principle of operation of various electrochemical wastewater treatment devices; to identify the advantages and disadvantages of such electrochemical methods as electrodialysis, electrocoagulation, galvanocoagulation, electrochemical oxidation and reduction of wastewater components. As a result of the study, a comparative analysis of the methods of electrochemical wastewater treatment was carried out, which helps to choose the right method depending on the types of pollutants.