Time-division multiplexing IC card interface equipment

The invention relates to IC card interface device used fewer interface resource to realize multiple IC cards time sharing operation and multiplexing. Its technical proposal includes the following steps: it includes microprocessor MCU or special IC card interface chip, many IC card interfaces for IC card communication accord; its features are that it set one or many electronic switch between the MCU or special IC card interface chip and the IC card interfaces; the common input/output CIO of the electronic switch are respectively connected with the MCU of the special IC card interface chip port;its switching input/output SIO are respectively connected with RST and I/O interface of the IC card; the MCU or the special IC card interface chip is connected with control input CI of the electronicswitch to make them do for only one IC card at a certain moment, realize multiple IC card interfaces time sharing multiplexing.