Abstract: The ex-situ technical transformation project of Fuling branch of Chongqing tobacco industry Co., Ltd.is located in Lidu Industrial Park, Fuling District, Chongqing.At the design phase, BIM and simulation analysis technology are applied to effectively verify and optimize the design scheme.Through the 3D integrated pipeline design, the rework and waste caused by pipeline collision are reduced significantly.At the construction stage, the BIM-based construction simulation and coordination effectively improve the communication and coordination efficiency and project management level.After the completion of the project, all workshops have installed and deployed an independently-developed visual 3D information system platform using the completion model.The platform realizes the transmission and sharing of construction data, and is gradually playing a more significant role in plant operations, which lays a good data base for the follow-up construction of a digital plant.