The card of Jinjiang Library cannot be exchanged for money. The card of Jinjiang Library is usually used for borrowing books and documents, and does not have the function of changing money. There will be a deposit and balance on the borrowing card of Jinjiang Library, which needs to be returned. You can return the lent books first, and then go to Jinjiang Library for refund with your library card and valid ID card. Different libraries may have different regulations. Please read the relevant regulations of the library carefully and consult the staff for confirmation before returning it.