A mobile terminal, a maintenance server, a method and an apparatus for maintaining a virtual subscriber identity module (SIM) card, where the method includes checking that a physical SIM card is inserted into a physical SIM card slot, switching a SIM card in a working state from the virtual SIM card to the physical SIM card using a SIM card switching switch, accessing a carrier network using the physical SIM card, receiving maintenance data sent by a maintenance server to the physical SIM card, and maintaining the virtual SIM card according to the maintenance data. Hence, after data of a virtual SIM card is damaged, the virtual SIM card can still be maintained without returning the virtual SIM card to a manufacturer for repair.