A multiple subscriber identity module cards (multi-SIM) resource management method, device and multi-SIM terminal. The method comprises: acquiring a subscriber identity module card list in a terminal, the subscriber identity module card list comprising all subscriber identity module cards in the terminal; and if a remaining quantity of a service resource on a subscriber identity module card currently used in the terminal is less than or equal to a preset remaining quantity threshold, then automatically switching to a subscriber identity module card having a sufficient service resource and in the subscriber identity module card list.