When the fixed exchange rate system is implemented, when the balance of payments is in deficit, the balance of payments cannot be automatically balanced through exchange rate changes in time, which often leads to a large amount of gold foreign exchange outflow and a substantial decline in international reserves. In addition, the implementation of a fixed exchange rate system will conduct inflation internationally. Because price is the universal law of commodity exchange, when a country has inflation, its currency depreciates internally. However, due to the fixed exchange rate system, the exchange rate cannot be adjusted in time, which will inevitably lead to a large number of exports from other countries to the country due to rising domestic prices, leading to a trade surplus in exporting countries, thus increasing the money supply of exporting countries due to the increase in foreign exchange income. On the one hand, the commodity supply of exporting countries decreases, on the other hand, the money supply increases, which is very easy to cause inflation.