Abstract: Based on the study of conceptual modeling for nonplanar road network and GDF logical model,this paper sets forward a representation approach to modeling the urban multi-model transportation network and connectivity relationships between different features in different modes,and presents the formal definition of the involved features and relationships.A practical demonstration illustrates the application advantage of the presented model.The model also can be used to assist the automation of connectivity for urban multi-model transportation networks,and provide an effective support on public traveling information service.