龙眼是我国热带水果的典型代表，对支撑广东的农业经济发展发挥了重要作用。龙眼具有“开胃健脾，补虚益智”等滋补功效，以龙眼为原料开发营养健康食品是促进龙眼产业提质增效的有效途径。本文围绕龙眼活性成分及其生物活性研究、以龙眼为主要原料的营养健康食品的开发进行了综述。多糖是龙眼研究最广泛的活性成分，已有研究对其结构特征、免疫调节等生物活性及其作用机制进行了深入系统的探究，但对龙眼中其他活性成分及相关功能的认知仍十分有限。目前，以龙眼为原料有133个获得批文的保健食品，但产品普遍为功能因子尚不明确的第二代保健食品。同时，以龙眼为原料的普通食品有待进一步向多元化和功能化方向拓展。创建与龙眼功能特性相适应的专用加工技术，指导其多元化加工利用是推动龙眼产业健康发展的重要途径。

Longan is a typical representative of tropical fruit in China. It plays an important role in supporting the development of agricultural economy of Guangdong province. The tonic effects of longan, such as “appetizing and invigorating spleen, tonifying deficiency and replenishing intelligence", were recorded in traditional Chinese medical books. Developing healthy food with longan is an effective way to promote the development of longan industry. In this paper, the bioactive ingredients and biological activities of longan, as well as the healthy food with longan were reviewed. Polysaccharide is the most widely studied active ingredient in longan. There have been in-depth and systematic researches on its structural characteristics and immune regulation mechanism. However, the understanding of other active ingredients and bioactive mechanism in longan are still very limited. Up to now, there are 133 functional foods with longan in the market, which belong to the second generation of functional food. Meanwhile, the diversified and functional foods with longan need to be further expanded. Creating special processing technology of longan is an important way to guide diversified processing of longan and promote the development of longan industry.

国家自然科学基金项目（32001707）；广东省科技专项资金项目（mmkj2020001）；广州市科技计划（202002030315；201907010035；201803010079）