由于不断增加的二氧化碳排放导致全球变暖，且能源短缺等问题日益恶化，将二氧化碳电化学还原为高附加值化学品和燃料引起了极大的兴趣，设计高效催化剂对实现二氧化碳的高效选择性转化具有重要意义. 在所探索的各种催化剂中，铜基催化剂具有良好的开发潜力，可用于烃类生产. 本文综述了铜基电化学二氧化碳转化材料的最新进展. 分别从尺寸结构到不同形式（合金、氧化物）的铜基催化剂，以及分子催化剂等方面展开，重点讨论铜基催化剂上二氧化碳电解还原的反应机理. 最后，对未来高效铜基催化剂的设计提出展望，以促进二氧化碳转化的可持续发展.

The electrochemical reduction of carbon dioxide (CO₂) to useful chemicals and fuels has attracted enormous interest since the deteriorating global warming and energy shortage problems resulted from ever-increasing CO₂ emission. Designing efficient catalysts is of capital significance to realize the efficient and selective conversion of CO₂. Among various catalysts explored, copper-based compounds have promising potentials with acceptable efficiency for hydrocarbon production. Herein, recent advances on copper-based materials are summarized for electrochemical CO₂ conversion. We intend to include the dimensional structure, different forms (alloy, oxide) and molecular catalysts in copper-based catalysts. Moreover, the reaction mechanisms of CO₂ electroreduction on Cu-based catalysts are emphatically discussed. Finally, potential directions are also proposed for future design of highly efficient Cu-based catalysts to promote the rapid development of CO₂ conversion for sustainable world.