Abstract: The integrated distribution network model is the basis of panoramic situation awareness, flexible controllability, and coordination of the transmission and distribution network. The integrity and correctness of the distribution network model have become a key issue in the digital transformation of the distribution network business. The convention businesses and the new businesses in the new power system with renewable energy as the main body are firstly analyzed for the integrated distribution management. From the perspective of improving the interoperability of the integrated distribution management business, an integrated marketing, distribution and dispatching modeling method based on the smart grid architecture model (SGAM) is proposed, and an integrated distribution network model in the information interoperability layer is established. The use case analysis is carried out with the fault location, isolation and recovery (FLISR) as an example, and the analysis results are mapped to the component interoperability layer and information interoperability layer of the SGAM, to verify the effectiveness of the modeling method.