A network slice management method performed by a network slice management apparatus, wherein the network slice management apparatus comprises a communicator, a processor, and a memory, the processor is coupled to the communicator and the memory, the memory is configured to store network slice information, and the method comprises: • receiving, by the communicator, a network element address query request from a service capability exposure function apparatus, wherein the network element address query request comprises: ∘ in a first alternative, a network slice feature name being a name of a network slice feature, and a network element type indication, wherein the network element type indication is used to indicate a type of a network element, ∘ in a second alternative instead of the first alternative, a network slice identifier identifying a network slice and the network element type indication indicating the type of the network element, • obtaining, by the processor, in the first alternative, from the memory, based on a correspondence between the received network slice feature name and the network slice identifier, the network slice identifier, and subsequently obtaining network slice information from the memory based on the network slice identifier, wherein the network slice information contains an Internet Protocol, IP, address of at least one network element, obtaining, by the processor, in the second alternative, the network slice information from the memory based on the network slice identifier, • determining, by the processor, in the first and second alternative, based on the network slice information and the network element type indication, an IP address of a network element among the at least one network element, wherein the network element having the determined IP address is of a same type as indicated by the network element type indication, and • sending, by the communicator, in the first and second alternative, the determined IP address that is of the network element to the service capability exposure function apparatus. • receiving, by the communicator, a network element address query request from a service capability exposure function apparatus, wherein the network element address query request comprises: ∘ in a first alternative, a network slice feature name being a name of a network slice feature, and a network element type indication, wherein the network element type indication is used to indicate a type of a network element, ∘ in a second alternative instead of the first alternative, a network slice identifier identifying a network slice and the network element type indication indicating the type of the network element, ∘ in a first alternative, a network slice feature name being a name of a network slice feature, and a network element type indication, wherein the network element type indication is used to indicate a type of a network element, ∘ in a second alternative instead of the first alternative, a network slice identifier identifying a network slice and the network element type indication indicating the type of the network element, • obtaining, by the processor, in the first alternative, from the memory, based on a correspondence between the received network slice feature name and the network slice identifier, the network slice identifier, and subsequently obtaining network slice information from the memory based on the network slice identifier, wherein the network slice information contains an Internet Protocol, IP, address of at least one network element, obtaining, by the processor, in the second alternative, the network slice information from the memory based on the network slice identifier, • determining, by the processor, in the first and second alternative, based on the network slice information and the network element type indication, an IP address of a network element among the at least one network element, wherein the network element having the determined IP address is of a same type as indicated by the network element type indication, and • sending, by the communicator, in the first and second alternative, the determined IP address that is of the network element to the service capability exposure function apparatus.