Abstract: The evolutionary theories of engineering held that modern industrial civilization is completing its transition to ecological civilization. Compared with the traditional engineering choice， the new engineering choice is bound to break the set patterns and bring about innovations， which necessarily contain the intrinsic value changes of engineering choice. From the ecological perspective， the most important innovation is the one of value orientation; that is， attention is paid not only to new technologies but also to new attitudes， which require us to be fully aware that engineering choice is guided by intrinsic values， to break out of the socalled set pattern of “nature conquest”， to resist the materialistic values， to include ecological resource consumption into the future engineering costs， to strike a balance between engineering implementation and engineering loading， and finally to explore the new driving types of engineering in the future ecological civilization.

Key words: innovation, ecology, engineering choice, intrinsic value