Abstract: To achieve the application of BIM (Building Information Modeling)+GIS (Geographic Information System) technology in the construction process of railway four electrical engineering, this paper proposesd an intelligent construction scheme for railway four electrical engineering. The paper implememted rapid model generation and integration and shared of data at various stages of the project by constructing a BIM family library, parameterized modeling, and model lightweight technology, designed a BIM+GIS management platform that deeply integrated production factor information and management factor information in the project management process with BIM model information and GIS technology, met the lean management needs of three-dimensional visualization, digitization, and full element information construction for different management departments and users at different levels, and implemented digital delivery of railway four electrical engineering projects. The application shows that this scheme can provide technical support for promoting the application and development of BIM+GIS technology in railway four electrical engineering.