Abstract: In this paper，the development status for the electrocatalytic reduction of CO2 in aqueous medium is reviewed. The mechanism of electrocatalytic reduction，the classification and selection of electrode and catalyst，and the effect of temperature，current density and pressure on the selective and Faradaic efficiency of reduction are discussed. The study areas and application prospective of the electrocatalytic reduction of CO2 are proposed.

摘要： 介绍了在水溶性介质中利用电化学催化的方法还原CO2的研究现状：电催化还原机理、电极材料催化剂的分类和选择；综述了温度、电流密度以及压力等对还原选择性和法拉第效率的影响；展望了CO2电催化还原方法的研究方向和应用前景。