Fuente: Wipo "digitalization" A management method and apparatus based on a digital twin service are provided. The method includes: A first device creates at least one digital twin instance based on first information and data of a physical entity, where the first information indicates to create a digital twin requested by a second device, the at least one digital twin instance corresponds to the physical entity, and the first device is configured to manage the physical entity; and the first device sends second information to the second device, where the second information includes information about the at least one digital twin instance, and the second information indicates an operation that can be performed on the digital twin instance. According to the solutions of this application, a more accurate digital twin can be constructed. A vendor domain management system constructs a digital twin, and provides a digital twin service for an operator OSS domain.