Generally speaking, the two are the same meaning. But foreign exchange is bank deposits, and foreign exchange in a broad sense includes securities in addition to foreign currency. Foreign currency focuses on cash, which means more. In real life, foreign currency is foreign exchange. From the perspective of exchange rate, the two are more the same.

Definition of foreign exchange: payment voucher expressed in foreign currency for international settlement.

The International Monetary Fund's interpretation of foreign exchange is that foreign exchange is a creditor's right held by monetary management authorities (central bank, monetary institutions, foreign exchange stabilization fund and Ministry of Finance) in the form of bank deposits, treasury bonds and long-term and short-term government securities. Can be used when the balance of payments is in deficit. Including: foreign currency, foreign currency deposits, foreign currency securities (government bonds, treasury bonds, corporate bonds, stocks, etc.). ) and foreign currency payment vouchers (bills, bank deposit vouchers, postal savings vouchers, etc.). ).