In the early stage of the development of the foreign exchange market, a country's import and export data can have a great impact on the foreign exchange market. However, at present, the daily trading volume of the foreign exchange market reaches 6 trillion US dollars, of which more than 90% are speculative transactions, and there are few import and export remittances from various countries. Therefore, it is difficult for rice to judge the demand for dollars based on the net exports of the United States. It can only be said that the increase in US exports indicates that the US economic recovery has made progress, which may be conducive to risk sentiment and lead to the appreciation of non-US currencies. The most important factors affecting the foreign exchange market are the international economic situation and people's psychological expectations.