目的 介绍了纳米 ZnO 的制备方法、抗菌活性和抗菌机理，及其在食品包装材料中的应用。方法 总结国内外对纳米 ZnO 在食品包装材料中的研究现状，并简要讨论了纳米 ZnO 在安全方面的问题和未来的发展趋势。结论 纳米 ZnO 不仅可以为包装材料提供抗微生物活性，而且能改善包装材料的性质。 纳米 ZnO 已经开始应用于食品包装材料中。

The work aims to introduce the preparation methods, antibacterial activity and mechanism of ZnO nanoparticles, as well as its application in food packaging material. The research status of ZnO nanoparticles in food packaging materials at home and abroad was summed up, and their safety issues and future development trends were also briefly discussed. ZnO nanoparticles can not only provide antimicrobial activity for the packaging material, but also improve the properties of packaging materials. ZnO nanoparticles have already been applied in the food packaging materials.