A network slice management method performed by a network management unit, the method comprising the step of: • obtaining (step 501) capability description information of a network slice, the capability description information of the network slice is used to describe a capability of the network slice, wherein the capability description information of the network slice comprises a feature of the network slice and a deployment capability of the network slice, wherein the feature of the network slice comprises any one of the following information: ∘ a success rate of service invocation of a service provided by the network slice, ∘ a success rate of service usage of the service provided by the network slice, ∘ a service latency of the service provided by the network slice or a network latency, ∘ a data size of data packets supported by the service provided by the network slice, and ∘ reliability information indicating a degree of continuous operation of the service provided by the network slice, ; and • sending (step 503) a notification message to a service management unit, wherein the notification message carries the capability description information of the network slice, and • receiving (step 507) a network slice management request message from the service management unit, wherein the network slice management request message carries deployment information of the network slice, and the deployment information of the network slice corresponds to the deployment capability of the network slice; and • managing (step 508) the network slice based on the deployment information of the network slice. • obtaining (step 501) capability description information of a network slice, the capability description information of the network slice is used to describe a capability of the network slice, wherein the capability description information of the network slice comprises a feature of the network slice and a deployment capability of the network slice, wherein the feature of the network slice comprises any one of the following information: ∘ a success rate of service invocation of a service provided by the network slice, ∘ a success rate of service usage of the service provided by the network slice, ∘ a service latency of the service provided by the network slice or a network latency, ∘ a data size of data packets supported by the service provided by the network slice, and ∘ reliability information indicating a degree of continuous operation of the service provided by the network slice, ; and ∘ a success rate of service invocation of a service provided by the network slice, ∘ a success rate of service usage of the service provided by the network slice, ∘ a service latency of the service provided by the network slice or a network latency, ∘ a data size of data packets supported by the service provided by the network slice, and ∘ reliability information indicating a degree of continuous operation of the service provided by the network slice, ; and • sending (step 503) a notification message to a service management unit, wherein the notification message carries the capability description information of the network slice, and • receiving (step 507) a network slice management request message from the service management unit, wherein the network slice management request message carries deployment information of the network slice, and the deployment information of the network slice corresponds to the deployment capability of the network slice; and • managing (step 508) the network slice based on the deployment information of the network slice. <EOS>