The economic crisis itself will not directly lead to the depreciation of cash, but the excessive monetary measures taken by the state to deal with the economic crisis will lead to the depreciation of cash. Social and economic operation has a certain period, which is the inevitable law of economic and social development. When economic and social development falls into economic crisis, the economy of a country or region will continue to shrink for a period of time, and the overall unemployment rate of society will rise. At this time, in order to restore the normal economic order, the state will adopt active monetary and fiscal policies to expand domestic demand and stimulate consumption. That is, this active policy will cause a certain degree of currency depreciation.

However, in the domestic market, no matter how the exchange rate changes, the impact on the domestic economy will not be great, because China's management of RMB is that there is no free convertibility under the opening of capital account. Even under the crisis, the impact on China's economy is not great! Our country has been opened to the world. Under the current situation of global economic integration, there is no completely independent economic individual.

Financial crisis refers to the crisis of financial assets, financial institutions and financial markets, which is manifested in the sharp drop in the price of financial assets, the collapse or near collapse of financial institutions, or the collapse of a financial market such as stock market or bond market. The financial crisis is a crisis in the financial field. Because financial assets are highly liquid, finance is very international. The fuse of the financial crisis can be any country's financial products, markets and institutions. The financial crisis is characterized by people's expectation that the future economy will be more pessimistic. The currency of the whole region has been greatly devalued, the economic aggregate and scale have been greatly reduced, and economic growth has been hit, which is often accompanied by a large number of business closures, rising unemployment rate, general economic depression in society, and sometimes even social unrest or national political turmoil. Financial crisis can be divided into currency crisis, debt crisis, banking crisis, subprime mortgage crisis and other types. The financial crisis is becoming more and more complicated.