The invention relates to a switch device for automatically connecting to NFC chip and capable of switching a plurality of secure elements, comprising: a slave port for communicatively connecting to the NFC chip; master ports for communicatively connecting to the plurality of secure elements respectively; a registry unit, in which connection information of each secure element and application information of all the applications in each secure element are stored; and a master controller for controlling the switch device to establish a first channel with the NFC via the slave port and to establish a second channel with the secure element via the master port. The invention supports SWP connection of a plurality of secure elements, and can automatically select a corresponding secure element according to a command sent from the card reader and activate communication.