This application discloses a network management method, device, and system to solve the problem of low efficiency in network management by manual coordination. In one embodiment, the network management method includes: obtaining, by a first network management unit, network management service description information or network management indication information, where the network management indication information is used to determine the network management service description information. The network management service description information includes at least one of a managed object and management operation information, and the network management service description information is used to describe a management service supported by a network. The method further includes sending, by the first network management unit, the network management service description information or the network management indication information to a second network management unit.