Abstract: Sodium alginate/nanomaterial composites are blends of sodium alginate and nanomaterial fabricated by certain technology. Recently，more interest has been attracted to those composites. It is mainly due to their excellent physicochemical properties，functional features，good biocompatibility and special nanometer effect. In this paper，the physicochemical properties and functional features of sodium alginate/nanomaterial composites were introduced，and their application in pharmaceutical，food and industry were summarized，including the research and progress in drug delivery，tissue engineering scaffold，antibacterial material，wound dressing，food packaging，industrial production and sewage treatment. The application of sodium alginate/nanomaterial composites would be promising，but in order to facilitate the commercial adoption，certain problems also need to be solved，such as the optimization of preparation technology，and the evaluation of their safety.

Key words: sodium alginate, nanomaterials, pharmaceutical, food, industry

摘要： 海藻酸钠纳米复合材料是将海藻酸钠与纳米材料通过相应的技术制备得到的聚合物纳米复合材料，由于其具有良好的理化性质、功能特性、生物相容性及特殊的纳米效应，因而受到国内外学者的广泛关注。本文简介了海藻酸钠纳米复合材料的理化特性及功能特性，综述了其在生物医药、食品及工业中的应用研究进展，主要介绍了该类材料在药物载体、组织工程支架、抗菌材料及创伤敷料、食品包装、工业生产及污水处理等方面的研究及进展，并指出该复合材料具有光明的应用前景，但仍需要从制备工艺的优化、安全性能的科学评价等方面解决其在应用商业化面临的问题以加速其发展。

关键词: 海藻酸钠, 纳米材料, 医药, 食品, 工业