Abstract: To develop the standardization and large-scale of Industrial Internet, the cross-domain and multi-level interconnection and interoperability should be realized. As the information and communication technology improves,the information flow becomes frequent among different Industrial Internet platforms, networks, devices, systems,applications, and so on. However, the existing information islands could make information interaction much difficult,such as the heterogeneous data and information. In this paper, information model is built to achieve the cross-domain and multi-layer interoperability of Industrial Internet, meanwhile, the status and development trend are studied, as well as the development suggestions are obtained.

Key words: information model, Industrial Internet, information island, interconnection and interoperability