The foreign exchange market is the international currency market, the place for activities of foreign currency transactions and the payment currency value.Trading on the foreign exchange market is a difficult profession requires investors, speculators and market analysts have to understand the operations of the market in different time, different types of money. This article gives readers a more in-depth view of the operations of the foreign exchange market, to be able to select the best time of the transaction, providing the highest efficiency, avoid risk and selecting currency transactions accordingly.