Abstract:With the rapid development of urbanization, the roads planned and designed in the past have not satisfied the increasing traffic demand. In the reconstruction engineering of municipal roads, compared with the newly built projects, the pipeline integration is more complex. Compared with the traditional 2D design, the application of BIM technique has more advantages in the integration of municipal pipeline. The functions of 3D visualization information, information sharing and collision check of BIM technique are used to optimize the design scheme of pipeline integration, which decreases the design change of projects, guarantees the project schedules and saves the project costs.