A communication method and a related apparatus are provided, relating to the field of communication technologies. The communication method includes: A relay node sends first information to a first donor node when a first triggering condition is met, where the first information includes an outcome of setting up a first F1 interface between the relay node and a target donor node. In this method, the first information is sent to the first donor node, so that the first donor node learns that the relay node does not set up an F1 interface with a second donor node indicated by the first donor node, and/or the first donor node learns that the relay node sets up an F1 interface with a target donor node configured by a network management system.