The present invention discloses a method and system for softly unloading a core network element in a multi-homing networking mode, for solving the technical problem of high call loss rate caused by unloading the multi-homing core network element due to reasons like upgrading, failure, or removal. In the present invention, the to-be-unloaded multi-homing core network element is set into an office direction blockage state, and the multi-homing core network element will not be distributed with a new service; and the to-be-unloaded multi-homing core network element is unloaded when the existing services thereon are processed into a predetermined state. The present invention reduces the call loss rate and mitigates the impact on the existing services when the multi-homing core network element needs to be unloaded.