Abstract: ［Purpose/Significance］This article summarizes the development of citation sentiment analysis. It also analyzes the challenges faced by citation sentiment analysis and its future direction.［Design/Methodology］By reviewing the results of relevant research on citation emotion analysis at home and abroad, this article put forward the framework of citation sentiment analysis including citation content extraction, citation sentiment classification, and citation sentiment recognition system; It systematically analyzed the existing related research results, and the applications of citation sentiment analysis in academic evaluation, information retrieval and other fields were also summarized.［Findings/Conclusion］Citation sentiment analysis has already made abundant important achievements in technologies and applications. However, it still faces many problems and challenges, such as citation context extraction, corpus annotation and feature engineering; At the same time, end-to-end citation sentiment analysis, multi-feature citation sentiment analysis, multi-modal citation sentiment analysis, and citation sentiment analysis based upon time series are the significant future development directions.［Originality/Value］This article reveals the development progress and characteristics of citation sentiment analysis, and expounds its future development directions.

Keywords: Citation sentiment analysis, Citation context, Emotion polarity, Emotion classification, Academic evaluation