In the background of global infrastructure construction and the transformation of the construction industry to an integrated service model, this study draws on strategic management theory, especially Porter's theory of competitive advantage and the resource-based view (RBV), to explore the competitive advantages of CCC to maintain its leading position in the highly competitive integrated building services field. This study is mainly based on interviews, through qualitative research and literature analysis, to explore the factors that CCC uses to build differentiated competitive advantages. The researchers hope that this study can provide some reference for peer companies to enhance their competitive advantages, and at the same time provide strategic inspiration for international customers and other researchers to understand how Chinese integrated building service providers can gain competitive advantages in the evolving global infrastructure ecosystem.