The original of enterprise competitive advantage, which is studied deeply by many economists and managements, is always a concerning topic for enterprises in theory. From the 1990s' following the Knowledge-Based Enterprise Theory and Core Competence of Enterprise bring forward, the answer of the proposition is cleared, then what kind of relationships is actually between enterprises, knowledge and core competence? Aimed at this question, the paper, beginning with analyzing enterprise competitive advantage, through studing original factors of enterprise competitive advantage step by step, indicate that the spring of enterprise competitive advantage consists in knowledge of enterprises, and furthermore puts forward Knowledge-Based Enterprise Theory. Based on it, the paper advances that enterprises may make innovation managements of enterprises knowledge establish core competence of enterprises, which bringsenterprise longevity competitive advantage. |