The application provides a network slice migration method, device and equipment. The method comprises the following steps: searching for an
extended object corresponding to a starting object, adding the starting object and the
extended object into a migration set, wherein the starting object and the
extended object both meet a preset migration rule, each extended object is an associated object of the starting object or other extended objects, and a
service layer and a
client layer carried thereby are associated objects; if a target vLink exists in the migration set, removing the target vLink from the migration set, searching for a target tunnel in the migration set, wherein the target vLink is a dedicated vLink that needs to be reserved in a current network slice, and the target tunnel is an associated object of the target vLink; performing path adjustment on the target tunnel, so that the adjusted target tunnel only passes through vLinks in the migration set and a target network slice; and migrating objects in the migration set to the target network slice. Through the application, automatic migration of the network slice can be quickly and accurately performed.