中文摘要：

核桃分级技术是其产业化过程中进行流通、贮藏保鲜及深加工和提高农产品附加值的关键技术之一。为此，针对我国目前各种红枣分级技术以及红枣分级技术未来需要解决的问题，介绍了我国目前最典型的核桃分级机以及各自的结构和特点。结果表明：机械式核桃分级机在一段时间内还有很大的市场，随着核桃分级技术的发展，基于机器视觉的红枣分级机在特定的使用对象方面取代原有的机械式核桃分级机是必然趋势。

英文摘要：

Walnut classification is one of the key technologies for circulation, the industrialization process of storage and deep processing, increase the added value of agricultural products.Therefore focusing on various current red dates classi-fication technology of our country and problems which need to be solved this paper represent the most typical walnut clas-sifier of china and its structure and features.The result shows that the mechanic walnut classifier has a great market poten-tial over the period of time.Along with the development of walnut classification technology.It is an inevitable trend that vision bused classifier will replace the existing we mechanical type of classifier.Intelligent sorting can improve the pro-cessing of agricultural products accurately.