Abstract: Aflatoxin content in peanut over the standard has become an important factor to restrict peanut export from our country in the recent years. Only in 2004, about 43 times of warning for aflatoxin content over the standard to the peanut exported from Shandong Province to EU was. In order to effectively evade the technical wall in international peanut trade, and to enhance the healthy development of peanut industry in China, this paper summarized the national standards for peanut aflatoxin limit and its determination, including aflatoxin limit index for peanut and its products at home and abroad. Combined with the current need of peanut trade in the world, some suggestions for standard-building and timely collection of the international standards for peanut aflatoxin were made, and the importance of strengthening the determination and research ability of peanut aflatoxin was discussed in this paper, which wished to provide a reference for raising China peanut competition in the international market.