As we all know, foreign exchange dumping is an act of dumping goods and competing for the market by using the depreciation of domestic currency. Generally speaking, it is to use the devaluation of the local currency to promote exports, because after the devaluation of the local currency, the prices of export commodities expressed in foreign currencies will be relatively reduced, thus improving the competitiveness of the country's commodities in the international market and helping to expand exports; Restrict imports. However, foreign exchange dumping requires certain conditions, that is, the depreciation of the local currency is faster than the domestic depreciation and the other country does not retaliate.