Provided are a network slice configuration method, a first network element and a second network element. The network slice configuration method includes: sending, by a first network element, network slice configuration information to a second network element, so that the second network element stores network slice information corresponding to the network slice configuration information; receiving, by a second network element, network slice configuration information of a first network element; and storing, by the second network element, network slice information corresponding to the network slice configuration information.