The present invention discloses a method for implementing service roaming. The method includes: receiving a roaming registration request that includes a service identifier (ID); obtaining a physical access address of a service according to the service ID, and generating and storing service registration route information that includes the service ID and the physical access address of the service; obtaining an address of a home service router or a service router to which the service belongs before the service roams, and sending a roaming notification message to the home service router or the service router to which the service belongs before the service roams. In this way, a user may access the service, thus the user experience and the universality of services created by the user are improved.