Abstract: The granulated blast furnace slag is a solid by-product produced in the process of blast furnace smelting pig iron. The chemical composition of the granulated blast furnace slag is similar to ordinary Portland cement, and its physical properties are similar to natural sand, which can be used as building materials. ObjectiveThe use of granulated blast furnace slag as aggregate can start the innovation of emerging materials in the construction and civil engineering industry. At the same time, it can save energy and reduce certain environmental pollution. Method Scholars at home and abroad have done a lot of theoretical and experimental research on the mechanical properties and engineering application of granulated blast furnace slag concrete. They have made great progress in improving the performance of granulated blast furnace slag concrete, engineering practical application and production technology innovation, and have constructed a relatively complete research system. Result Based on the differences in the physical and chemical properties of granulated blast furnace slag in different regions, the mechanical properties and durability of concrete prepared by granulated blast furnace slag were analyzed. The mechanical properties of reinforced concrete members of granulated blast furnace slag were analyzed, as well as the feasibility and current research limitations of its application in the field of civil engineering. Conclusion The prospect of resource application of granulated blast furnace slag in the field of civil engineering is prospected, which provides a reference for further research on the mass recycling of granulated blast furnace slag.