Abstract: With the number of genetically modified crops approved in different countries/regions, the planting area of genetically modified crops  gradually increased, and the proportion of genetically modified products in international agricultural trade also increased. In the international agricultural trade, the risk of trade disruption due to the low level presence (low level presence, LLP) of genetically modified products problem is increasing, so many aspects of Chinas agricultural industry will be affected. In January 2020, corresponding requirements on “the LLP policies of Genetically Modified Products” were made in the <Economic and Trade Agreement Between the Government of the Peoples Republic of China and the Government of the United States of America>signed by China and the United States. From the global application of genetically modified crops, this article classified the worlds major economies according to the trade situation of genetically modified soybeans and their products,  analyzed the definitions and related policies of LLP of major international organizations and import and export countries/regions, and put forward suggestions for China to formulating LLP-related policies.

Key words: genetically modified products, low level presence, policy formulation

摘要： 随着转基因作物在不同国家/地区获批数量的逐步上升，转基因作物种植面积持续增加，转基因产品在国际农产品贸易中所占的比例大大提高。在国际农产品贸易中，因转基因产品低水平混杂（low level presence，LLP）问题而导致贸易中断的风险不断增加，我国农业产业的多个方面都将受到影响。2020年1月，中美签订《中华人民共和国政府和美利坚合众国政府经济贸易协议》，对转基因产品LLP情况做出了相应要求。从全球转基因作物应用情况出发，根据转基因大豆及其产品贸易情况对世界主要经济体进行分类，分析了主要国际组织及各进出口国/地区的LLP定义和相关政策，并为我国制定LLP相关政策提出了相关建议。

关键词: 转基因产品, 低水平混杂, 政策制定