Throughout the history of the currency development of various countries, although currency internationalization brings certain risks to the host country, it is far below the benefits. From the perspective of ordinary people, the high degree of internationalization of national currencies means that they are going abroad. In the process of travel, consumption, and studying abroad, it can be more convenient to pay in local currency without having to go through tedious exchange procedures. From the perspective of the government, international currency issuers can finance their international deficits by issuing national currencies, compared to other The benefits of the "mint tax" imposed by the country are self-evident. As a result, the currencies of many countries are "rivaling" towards internationalization. The text is intended to:. ['Reveal the reasons for the internationalization of currencies.', 'Explain the results of currency internationalization.', 'Remind the dangers of currency internationalization.', 'Analysis of the realization of currency internationalization.']