In the era of Knowledge-based Economy,Intellectual Capital(IC)increasingly plays more important role in creation of vale.IC is gradually becoming the core resources for Architecture Design Enterprises(ADEs) to establish their sustainable competitive advantages.On basis of the previous research and practical investigation,the authors summarize and identify the IC's connotation of ADEs in China,analyze inner relevancy between IC and competitive (advantages) of ADEs from systemic angle of view,and carry out empirical study by statistically analyzing 168 ADEs in Zhejiang Province.The results show that there are significant positive relations between IC and competitive advantages of ADEs.