Because of its rich active ingredients, Chinese date is one of the key plants in the study of natural products. Polysaccharide is an important active ingredient in Chinese date. Recent studies have shown that Chinese date polysaccharide has good antioxidant activity, anti-tumor activity, anti-inflammatory activity, immunomodulatory activity and hepatoprotective effect. Herein, the research progress on the extraction, purification, structure, activity and derivatization of Chinese date polysaccharides was reviewed. Several common extraction methods of Chinese date polysaccharide were compared, the new extraction methods of Chinese date polysaccharide were discussed, the purification methods of Chinese date polysaccharide were summarized, and the structure and activity of Chinese date polysaccharide were mainly discussed. Suggestions for structural reconstruction were put forward. The results provided a reference for the follow-up research, production and application of Chinese date polysaccharide, and laid a foundation for the development of Chinese date polysaccharide-related foods.

由于其丰富的活性成分，大枣是天然产物研究的重点植物之一。多糖是大枣的重要活性成分。最近的研究表明，大枣多糖具有良好的抗氧化活性、抗肿瘤活性、抗炎活性、免疫调节活性和保肝作用。本文综述了枣多糖的提取、纯化、结构、活性及衍生化的研究进展。比较了几种常用的枣多糖提取方法，探讨了枣多糖的新提取方法，总结了枣多糖的纯化方法，重点讨论了枣多糖的结构和活性。提出了结构改造的建议。研究结果为大枣多糖的后续研究、生产和应用提供了参考，为大枣多糖相关食品的开发奠定了基础。