When entering Korea, if you have more than 10000 dollars, you must declare it to the customs officer. Non-resident passengers leaving Korea must obtain permission from the Korean bank or customs if they bring foreign currency or won (including traveler's checks and bank checks) equivalent to more than 65,438+00,000 US dollars. However, the amount declared at the time of entry need not be declared again. Those who violate this provision will be fined or punished in accordance with the foreign exchange trading law. Description of bank card: Since China UnionPay began to accept business in Korea on June 5438+ 10, 2005, it has opened nearly 10000 merchants and more than 7000 ATMs all over Korea, covering areas and merchants where tourists from China are concentrated. At present, UnionPay credit cards and debit cards can be used to settle accounts in major duty-free shops, specialty stores and tourist attractions in Korea, and RMB can be deducted directly without charging currency conversion fees, which saves worry and effort.