The degradation mechanism of phenol includes three steps. Firstly, phenol is degraded into hydroquinone and catechol;Then they are degraded into oxalic acid;Finally, oxalic acid is degraded into carbon dioxide and water. In this paper, electrochemical treatment methods of phenol wastewater were introduced, such as three-dimensional-electrodes method, three dimensional electrode and electric-Fenton coupling method, electric catalytic oxidation method, electric-Fenton method. All these methods were compared, and the future research directions were also discussed.% 苯酚的降解机理是将苯酚先降解为对苯二酚和邻苯二酚，然后降解为小分子乙二酸，最终降解为二氧化碳和水的过程。介绍了近年来苯酚废水电化学处理方法的研究进展，包括三维电极法、三维电极与电-Fenton耦合法、电催化氧化法、电-Fenton法。对这些方法做了比较，并对今后研究方向提出建议，需要在苯酚的降解工艺、降解率的影响因素及电级材料选取和制备方面做近一步的研究和探讨。
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