Abstract: A preprocessing method for configuring a near field communication (NFC) smart card, includes: determining a card set belonging to a user; generating identifier information corresponding to the card set according to a non-contact parameter corresponding to a card included in the card set, the identifier information identifying at least one of a state of conflict or a state of compatibility between two cards included in the card set; and sending the identifier information to electronic equipment used by the user, such that the electronic equipment adds, to an NFC smart card according to the identifier information, at least two cards compatible with each other in the card set.

Abstract: The present disclosure provides a method and device for switching an NFC card. The method can include determining a non-smart NFC card from a card set that includes smart NFC cards that are activated by default. The method can further include performing an activation operation on the non-smart NFC card, and calling the non-smart NFC card on which the activation operation has been completed to perform near-field communication interaction with a card reading device in a case of receiving response information of activation success, where the response information of activation success indicates that the non-smart NFC card and the smart NFC cards do not conflict. Through the technical solution of the present disclosure, the near-field communication interaction efficiency based on the NFC card can be improved.