A method for configuring a network slice, comprising: acquiring from a secondary base station, by a master base station, network slice information of the secondary base station, wherein the network slice information of the secondary base station comprises slice capability information and a registration region of the secondary base station; generating (S101), by the master base station, joint network slice information according to network slice information of the master base station and the network slice information of the secondary base station, wherein the network slice information of the master base station comprises slice capability information and a registration region of the master base station and the joint network slice information comprises indication information for indicating that a terminal satisfies a multi-connection condition; and sending (S102), by the master base station, the joint network slice information to a core network element; wherein the master base station has a control plane connection with the core network element, and the secondary base station is in a dual-connected or a multi-connected working mode and has no control plane connection with the core network element; and generating (S101) the joint network slice information according to the network slice information of the master base station and the network slice information of the secondary base station comprising: adding, by the master base station, the slice capability information or both the slice capability information and the registration region of the secondary base station into the network slice information of the master base station. acquiring from a secondary base station, by a master base station, network slice information of the secondary base station, wherein the network slice information of the secondary base station comprises slice capability information and a registration region of the secondary base station; generating (S101), by the master base station, joint network slice information according to network slice information of the master base station and the network slice information of the secondary base station, wherein the network slice information of the master base station comprises slice capability information and a registration region of the master base station and the joint network slice information comprises indication information for indicating that a terminal satisfies a multi-connection condition; and sending (S102), by the master base station, the joint network slice information to a core network element; wherein the master base station has a control plane connection with the core network element, and the secondary base station is in a dual-connected or a multi-connected working mode and has no control plane connection with the core network element; and generating (S101) the joint network slice information according to the network slice information of the master base station and the network slice information of the secondary base station comprising: adding, by the master base station, the slice capability information or both the slice capability information and the registration region of the secondary base station into the network slice information of the master base station. <EOS>