Using a dual currency card on Amazon does not necessarily require a legal person. A dual currency card is a credit card that can be used to pay for international transactions, usually including accounts in RMB and foreign currencies.

During the registration and payment process on Amazon, you will generally be required to provide a valid payment method, such as a credit card or debit card. The specific requirements for dual currency cards may vary depending on the region, account type, and Amazon's policies.

In general, Amazon may require the payment method to match the owner of the account information to ensure payment security and compliance. However, this does not mean that it must be a dual currency card of the legal person himself. In some cases, a business may authorize other personnel to use the company's payment method for transactions.

If you have any questions about the specific requirements for Amazon's dual currency cards, it is recommended that you directly refer to Amazon's official documents or contact Amazon's customer service team, who can provide the most accurate and up-to-date information to ensure that your payment process goes smoothly