Abstract: With the globalization of ecological crisis and the awakening of human ecological consciousness,the concept of green development and green life style has become a consensus of people.The ecological thought in Chinese traditional culture can be the theoretical nutrition of green development.“Tao” and “De” are the ontological basis of Chuang Tzus philosophy,which contains extremely rich and profound ecological wisdom.“Tao” has the basic characteristics of origin,integrity,homogeneity,transcendence and naturalness,while “De” is the inherent nature endowed by Tao to all things in the world including human beings.Chuang Tzus “Tao” and “De” contain the non-anthropocentric ecological ethics embodied in the equal values and intrinsic axiology of everything without distinction,conforming to nature,benefiting from doing nothing,no hurting to nature,and the green life style and ecological consumption concept of being content with ones lot.

Key words: Chuang Tzu, Tao and De, ecological wisdom