Aimed at addressing issues such as unidirectional information transmission,lack of interactivity,and insufficient presentation of complex details in traditional PPT reporting methods for engineering projects,taking a breakwater project as an example,this study proposes a BIM-based three-dimensional interactive reporting solution.The approach integrates multi-disciplinary BIM models,oblique photography,and GIS data through the InfraFuser platform,enabling lightweight integration of multi-source models and scenario-driven storytelling.Using the core “Story Collection” module,with the project report outline as the main line,the visualization analysis and interactive demonstration of the design scheme are achieved through real-time dynamic control of model visibility,multi-dimensional sectioning analysis,attribute information query,and multimedia linkage.Engineering applications demonstrate that this reporting method significantly enhances information transmission efficiency and communication depth during bid presentations,design reviews,and construction briefings.It provides an immersive environment for efficient comprehension and collaborative decision-making of complex engineering solutions,forming a three-dimensional interactive reporting paradigm that can be reused in the field of water transportation engineering such as ports and waterways,and has certain promotion and application value.