With the economic crisis continues to expand around the world, the economy in every country or region has been affected, and the protectionism be-gan to show, with some countries carried out economy-stimulating policies with a protectionism trend.For example, USA government list- ed an item of \"Buy American\" in the stimulating plan, while France asked the automobile manufactur-ers not to close down plants in the country to protect the employment.Besides, some countries take tech- nical measures to trade in the aim of limiting the inflow of foreign products, in order to protect local companies.