Foreign exchange dumping is an act of using the depreciation of northern currency against foreign currency to dump goods and compete for the market. This is because after the devaluation of the domestic currency, the price of export commodities denominated in foreign currency has decreased, which has improved the competitiveness of domestic commodities in the international market and is conducive to expanding exports; Therefore, the depreciation of domestic currency and the rise of imported goods weaken the competitiveness of imported goods and restrict imports.