Abstract: Welded sections dominate in the steel structures of civil buildings in China, while the proportion of rolled sections is relatively low, far below the application level of developed countries. In order to promote the large-scale application of rolled sections in the field of civil construction, this paper compared the process and performance differences between rolled sections and welded sections, analyzed the key constraining factors hindering the large-scale application of rolled sections in China’s civil construction field, and proposed a path for the large-scale application of rolled sections based on high-efficiency & high-performance standardized steel structure systems and key application technologies. Based on this implementation path, the large-scale application of rolled sections in China’s civil construction field can be effectively promoted, contributing to the national strategic goal of "carbon neutrality and carbon peak".