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Ferrate ion, FeO 4 2or Fe(VI), has long been known as a very powerful and environmentally benign oxidizing agent suitable for a wide range of applications: organic synthesis, water and wastewater treatment, corrosion protection, and as a cathode material in the new super iron batteries. Several technique have been developed for the synthesis of ferrates including the thermal, wet chemical and electrochemical. The electrochemical approach has received the most attention of the three synthesis methods because it is easier to perform, does not require harmful and costly chemicals and provides the possibility for continuous production. The electrochemical synthesis of ferrate (VI) is reviewed in this work. Particular attention is paid to the influence of factors such as the anode material, electrolyte composition, temperature and current density. Mechanism of ferrate synthesis and recent advances in this field are discussed as well.