1, because money has certain restrictions in the circulation field of the country.

2. If citizens are not restricted from taking their own currency out of the country, it will seriously affect the income and expenditure and stock of their own currency and seriously affect their own economy, so it must be strictly controlled.

3. Exceeding it will lead to inflation, and too low will lead to deflation and economic recession.

At present, the State Administration of Foreign Exchange stipulates that domestic residents can only exchange foreign currency with the equivalent of US$ 65,438+RMB 00,000 each time with their valid identity documents. If it exceeds this amount, proof of foreign currency income source is required. For example, foreign currency is overseas employment income, and proof materials such as overseas employment contracts and tax-paid invoices need to be provided.

Extended data:

According to the Interim Measures for the Administration of Carrying Foreign Currency Cash into and out of China:

1. The Permit for Carrying Foreign Exchange abroad (hereinafter referred to as the Permit for Carrying Foreign Exchange) still uses the Permit for Carrying Foreign Exchange, which began to be used in August 1. 0999, and is uniformly printed by the State Administration of Foreign Exchange. All designated foreign exchange banks shall collect fees from the local branches of the State Administration of Foreign Exchange (hereinafter referred to as the foreign exchange bureau).

2. Outbound personnel can take foreign currency cash out of the country, or they can take foreign currency out of the country through bank remittance or by carrying money orders, traveler's checks, international credit cards, etc. According to the national financial management regulations.

If the outbound personnel leave the country with foreign currency cash not exceeding the equivalent of US$ 5,000 (including US$ 5,000), they do not need to apply for a carrying permit, and the customs will release them;

If the amount of foreign currency cash carried by outbound personnel exceeds US$ 5,000 to US$ 10000 (including US$ 10000), they shall apply to the designated foreign exchange bank for a certificate of carrying, and the customs shall examine and release it with the certificate stamped by the designated foreign exchange bank;

In principle, outbound personnel are not allowed to leave the country with foreign currency cash exceeding the equivalent of US$ 65,438+RMB 0,000. In any of the following special circumstances, the exit personnel may apply to the foreign exchange bureau for carrying certificates:

1, a large number of outbound groups;

2 long-term outbound or long-distance scientific investigation team;

3. Visits by government leaders;

4. Outbound personnel go to countries with wars, strict foreign exchange control, poor financial situation or financial turmoil;

5. Other special circumstances.

3. Considering that foreign currency payment vouchers and foreign currency securities will be incorporated into the bank management system, specific management measures will be formulated separately, and the customs will no longer manage the entry-exit personnel carrying the above vouchers and securities into and out of the country.

Four, the State Administration of foreign exchange and customs at all levels should organize the study and training of the Interim Measures for the Administration of Carrying Foreign Currency Cash into and out of the country, and widely publicize it through various news media in order to implement it.

After receiving this notice, all branches of the State Administration of Foreign Exchange shall forward it to their branches, designated foreign exchange banks and relevant units as soon as possible; Designated foreign exchange banks shall forward them to their branches as soon as possible; All directly affiliated customs shall forward them to the customs under their jurisdiction as soon as possible. If there are any problems in the implementation, please give timely feedback to the current account management department of the State Administration of Foreign Exchange or the supervision department of the General Administration of Customs.

Central People's Government-Interim Measures for the Administration of Entry and Exit with Foreign Currency Cash