Abstract: BIM full-lifecycle management, characterized by advantages such as information intercommunication and sharing, efficient and convenient management, intelligent and scientific operation, has been progressively adopted in the field of water conservancy and hydropower engineering. However, the teaching reform centered on BIM technology in water conservancy engineering-related specialty of higher vocational colleges remains sluggish, failing to align with the water conservancy industry's demand for technical and skilled talents. Through the implementation of the "One Core, Four Pillars" teaching reform, based on the BIM full-lifecycle management for water conservancy projects, it advocates for synergistic collaboration across four interconnected dimensions: BIM-specialized faculty development, reconstruction of BIM-integrated curriculum systems, construction of scenario-driven BIM teaching resources, and optimization of competency-oriented teaching methodologies. The ultimate goal is to construct a systematic BIM technology teaching ecosystem tailored to water conservancy engineering specialty in higher vocational education.