A method for implementing an operation, administration, and maintenance, OAM, function, comprising: receiving, by a unified OAM management center, detected network OAM status information sent by a network entity, wherein the network OAM status information is received in a manner that is based on a unified OAM management data model, or is received in a manner that is based on an OAM management data model that corresponds to a network technology used by the network entity; and processing, based on the unified OAM management data model by the unified OAM management center, the network OAM status information, wherein the unified OAM management data model comprises a unified parameter, wherein the unified parameter is a parameter commonly used in OAM management data models that correspond to different network technologies; wherein if the network OAM status information is received in a manner that is based on the OAM management data model that corresponds to the network technology used by the network entity, the processing, based on the unified OAM management data model by the unified OAM management center, the network OAM status information specifically comprises: converting, based on the unified OAM management data model by the unified OAM management center, the network OAM status information into an object of the unified OAM management data model; wherein the receiving the network OAM status information in a manner that is based on the unified OAM management data model specifically comprises: receiving, by the unified OAM management center, data that is in an XML form and that is transferred by the network entity by using the Network Configuration Protocol NETCONF, wherein the data in the XML form is converted from an object of the unified OAM management data model, the object of the unified OAM management data model carries the network OAM status information, and the object of the unified OAM management data model is obtained by the network entity by filling and/or extending, according to the detected network OAM status information, a related parameter in the unified OAM management data model. receiving, by a unified OAM management center, detected network OAM status information sent by a network entity, wherein the network OAM status information is received in a manner that is based on a unified OAM management data model, or is received in a manner that is based on an OAM management data model that corresponds to a network technology used by the network entity; and processing, based on the unified OAM management data model by the unified OAM management center, the network OAM status information, wherein the unified OAM management data model comprises a unified parameter, wherein the unified parameter is a parameter commonly used in OAM management data models that correspond to different network technologies; wherein if the network OAM status information is received in a manner that is based on the OAM management data model that corresponds to the network technology used by the network entity, the processing, based on the unified OAM management data model by the unified OAM management center, the network OAM status information specifically comprises: converting, based on the unified OAM management data model by the unified OAM management center, the network OAM status information into an object of the unified OAM management data model; wherein the receiving the network OAM status information in a manner that is based on the unified OAM management data model specifically comprises: receiving, by the unified OAM management center, data that is in an XML form and that is transferred by the network entity by using the Network Configuration Protocol NETCONF, wherein the data in the XML form is converted from an object of the unified OAM management data model, the object of the unified OAM management data model carries the network OAM status information, and the object of the unified OAM management data model is obtained by the network entity by filling and/or extending, according to the detected network OAM status information, a related parameter in the unified OAM management data model.