All major banks have foreign exchange services. If you go to a bank with this service, you can change US dollars into RMB. If the one-time settlement amount is more than US$ 654.38+US$ 00,000 but less than US$ 50,000 (including US$ 50,000), the bank shall, in accordance with the provisions of the Interim Measures for the Administration of Foreign Exchange for Domestic Residents, examine and verify the residents' personal true identity certificates and legal foreign exchange source certificates, and handle them; If the one-time foreign exchange settlement amount is equivalent to more than 50,000 US dollars, individual residents shall apply to the local foreign exchange administration with the above materials, and after the authenticity is verified by the local foreign exchange administration, they shall go to the bank with the approval of the local foreign exchange administration.