The literature has derived the carbon footprint of the semi-underground substation building at each stage of its life cycle, including the physicalization stage, operation stage, and construction and dismantling stage, through the establishment of a whole life cycle carbon emission model. The physical phase includes the production and transportation of building materials. Data set users must consider the specific geographical and climatic conditions of cold regions when interpreting the carbon emission data. The starting point for the data set usage is the publication time of the literature source, and the data is applicable over the substation's 50-year lifespan. The bill of quantities, construction drawings, and carbon emission factors for material production and transportation should be referenced for accurate carbon footprint calculation. It's important to apply the correct grid emission factors, which are influenced by policies such as the 'Notice on Doing a Good Job on the Management of Greenhouse Gas Emission Reporting for Enterprises in the Power Generation Industry in 2023-2025'.