Electro-oxidation technology, as one common seen electrochemical water treatment technology, can effectively address the problems in which conventional water purification technology cannot or cannot easily solve.It has becoming a promising strategy for its extraordinary features and advantages, especially in ultra-low discharge requirements of water treatment. The development of electro-oxidation technology enriches green catalytic oxidation system and is of great scientific significance for constructing "carbon neutral" water treatment technology. In the past ten years, electro-oxidation technology has drawn increasing attention and achieved great progresses.In aiming of aqueous pollutants removal, resource and energy recovery from wastewater, numerous studies focused on the design and modification of functional electrode materials, as well as exploiting efficient reactors. In this review, the mechanism and research progresses of electro-oxidation water treatment technology were systematically discussed. A conclusion on its future development was summarized.