摘要：Core competence is the consolidation of the basic elements of engineering company competition so that to make the company in a stable competitive situation and maintain the stable leading position. It will form the ability of market competence organically integrated by skills assets and capital operation mechanism to obtain the sources of stable excess profit. After all, the core competencies is the core capability, and the core capability is a kind of dynamic equilibrium system for an engineering company to be able to maintain long-term competitive advantage of actual or potential ability, which can withstand the test of time and is the technology or ability for a competitor difficult to imitate.