As an important agricultural product in China,the domestic supply rate of soybean is only about 15%,which is highly dependent on imports,and the source countries are concentrated in a few countries,which has a great impact on China's soybean industry.In addition,China's support policies for the soybean industry are not perfect,and the R&D investment is not implemented,which makes the comparative benefit of China's soybean low.This paper proposes to reduce soybean table waste and increase the quantity and quality of soybean reserve;At the supply side,we should increase the comparative benefits ...