Abstract: With the digital transformation of construction industry, BIM technology, as a new technology in the field of construction, can better construct the full professional model of buildings, realize real-time data sharing, and make the building have information that can be reused throughout its life cycle.This paper focuses on the innovative application of BIM technology in electrical engineering for modern hotel buildings, based on real cases. It analyzes the BIM application strategies during electrical system design and explores how three-dimensional collaboration, data integration, and lifecycle management can enhance the efficiency and reliability of duct layout, cable selection, and equipment installation design. This provides a solution for the comprehensive model design of public buildings with multiple functions, scenarios, and specialties.