Abstract: This paper develops new solutions to implementing schedule-cost coordination using packages BIM and P3E/C to improve the operability and intuition of the collaborative management of hydropower projects’ schedule and cost. First, we establish correlations between the P3E/C schedule-and-cost plan data and the BIM model components, and work out a procedure for implementing asynchronous calls by combining with the P3E/C Web Service interface. Then, we analyze the expression of schedule-and-cost information modeling by the IFC standard, and develop an initialization schedule-and-cost information model through secondary development of Revit using C# language, i.e. a baseline model for network-based information collaboration. Finally, we formulate a general procedure for implementing schedule-cost collaborative management together with a technique for achieving 5D schedule-and-cost tracking and analysis functions based on BIM, thereby obtaining a visual platform of information sharing and collaborative work at different staff levels. The results show that this method provides a visualization tool for tracking construction progress and cost, collecting more intuitive decision information for project managers and leaders, and lowering the threshold of professional management software for project implementation layers.