A service configuration method for a network service, wherein the method is used in a Network Function Virtualization Management and Orchestration, NFV MANO, architecture, which includes: an operation support system, OSS; a configuration system; a virtualized network function, VNF; a network functions virtualization infrastructure, NFV Infrastructure; an network functions virtualization orchestrator, NFVO; a virtualized network function manager, VNFM; and a virtualized infrastructure manager, VIM; characterized in that the configuration system is an element management system, EM, or the OSS; the method is performed by the VNFM, comprising: receiving, by the VNFM, a network service instantiation request, wherein the network service instantiation request comprises a preset service configuration event that is for a network service and that is related to a network environment of a carrier, wherein the network environment of the carrier is a quantity of IP addresses in the network of the carrier, or a quantity of global resources for signaling points in the network of the carrier; wherein the preset service configuration event is used to indicate a service configuration template or a workflow that is executed by the network service in a current operation scenario, and comprises a name of the service configuration event, the service configuration template or the workflow in the current operation scenario, and a service parameter required when the service configuration template or the workflow is being executed; wherein the current operation scenario comprises any one of an initialization scenario, a resilience scenario, an upgrade scenario, a security matrix scenario, or a service termination scenario; wherein the service parameter includes at least one parameter of an IP address of a local end, a port of the local end, an IP address of a peer end, a port of the peer end, or a service type supported by the network service; and sending, by the VNFM, service configuration information to the configuration system according to the service configuration event, so that the configuration system performs service configuration on the network service according to the service configuration information. the configuration system is an element management system, EM, or the OSS; the method is performed by the VNFM, comprising: receiving, by the VNFM, a network service instantiation request, wherein the network service instantiation request comprises a preset service configuration event that is for a network service and that is related to a network environment of a carrier, wherein the network environment of the carrier is a quantity of IP addresses in the network of the carrier, or a quantity of global resources for signaling points in the network of the carrier; wherein the preset service configuration event is used to indicate a service configuration template or a workflow that is executed by the network service in a current operation scenario, and comprises a name of the service configuration event, the service configuration template or the workflow in the current operation scenario, and a service parameter required when the service configuration template or the workflow is being executed; wherein the current operation scenario comprises any one of an initialization scenario, a resilience scenario, an upgrade scenario, a security matrix scenario, or a service termination scenario; wherein the service parameter includes at least one parameter of an IP address of a local end, a port of the local end, an IP address of a peer end, a port of the peer end, or a service type supported by the network service; and sending, by the VNFM, service configuration information to the configuration system according to the service configuration event, so that the configuration system performs service configuration on the network service according to the service configuration information. receiving, by the VNFM, a network service instantiation request, wherein the network service instantiation request comprises a preset service configuration event that is for a network service and that is related to a network environment of a carrier, wherein the network environment of the carrier is a quantity of IP addresses in the network of the carrier, or a quantity of global resources for signaling points in the network of the carrier; wherein the preset service configuration event is used to indicate a service configuration template or a workflow that is executed by the network service in a current operation scenario, and comprises a name of the service configuration event, the service configuration template or the workflow in the current operation scenario, and a service parameter required when the service configuration template or the workflow is being executed; wherein the current operation scenario comprises any one of an initialization scenario, a resilience scenario, an upgrade scenario, a security matrix scenario, or a service termination scenario; wherein the service parameter includes at least one parameter of an IP address of a local end, a port of the local end, an IP address of a peer end, a port of the peer end, or a service type supported by the network service; and sending, by the VNFM, service configuration information to the configuration system according to the service configuration event, so that the configuration system performs service configuration on the network service according to the service configuration information.