The invention provides a method and
system for initialization of an
Internet of Things virtual
subscriber identity module (SIM) card. The method comprises the steps that an
Internet of Things terminal is started and has access to
the Internet and then sends a connecting request to a terminal certification device according to a preset address; a
session key and a corresponding second certification number are generated and sent to a virtual card management device together with a terminal identification after the certification of
the Internet of Things terminal is achieved through the terminal certification device, and the address of the virtual card management device, the
session key and the corresponding second certification number are encrypted and then fed back to
the Internet of Things terminal; the
Internet of Things terminal encrypts the terminal identification by means of the
session key and sends the terminal identification and the second certification number to the virtual card management device; virtual SIM card data are generated when the virtual card management device certificates the Internet of Things, and the SIM card data are encrypted by means of the session key and then fed back to the Internet of Things terminal. According to the method and
system, a complete automatic management scheme is provided for initialization of the Internet of Things virtual SIM card, and safety of the initialization process can be guaranteed.