The concerning concepts and basic principles of capacitive deionization technology(CDI)are introduced,and visual analysis is utilized to classify and summarize the research about CDI in recent years.The research and application of MXenes-like electrode materials in the field of CDI are highlighted,and a comparative analysis on various electrode materials is presented.Finally,the characteristics of various electrode materials are summarized,and the great prospect of related research in the future application of CDI as well as the difficulties and challenges to suffer are foreseen.