Ecological philosophy came into being in the backdrop of people’s increasingly attention to the ecological environment crisis, was a product of critical reflection on modern civilization. The construction of ecological philosophy need to learn from a variety of cultural resources, and Buddhist philosophy can provide ideological and cultural resources for it. Fa-zang’s Dharmadhatu Dependent Origination thoughts which phenomena things form the unification of the whole through interdependence, interaction and mutual inclusion, not only have the significance of critical reflection on modern mechanistic worldview, and have many aspects of fit and enlightenment to ecological world view. Fa-zang’s Dharmadhatu Dependent Origination mainly consists of five aspects： Same and Difference of Three-nature, Six Meanings of Causation; Relations of Phenomena Things; Correlations of Six-Form; Ten Profound Meanings. The “Same and Deference of Three-nature” theory inherited and developed the three-nature and three-none-nature thoughts of Cittamatra, and its critical reflection on parikalpita-svabha^va has a dispelling function to the concept of modern ontology. And its idea of nature-phenomena fusion can provide thought bridge for Dharmadhatu Dependent Origination which affirms the relationship and integrality of the real world; The “Six Meanings of Causation” thoughts inherited and developed the “Six Meaning of Seed” thoughts of Cittamatra, which expounds the causal theory has a correct meaning to modern mechanical determinism. And its combining with the idea of principle part or subordinate part makes it to the Dharmadhatu Dependent Origination; “Relations of Phenomena Things” theory elaborates on the interdependence, interaction and mutual inclusion between phenomena things and elements include things, which contain similar world views as contemporary system theory. “Correlations of Six-Form” theory elucidates relationship between the whole and part from total form, independent form, same form, difference form, achieving form and destructive form, which consistent with the holism of contemporary system theory; The “Ten Profound Meanings” theory is the core of the Dharmadhatu Dependent Origination, which elucidates the holographic holism has the different connotation from contemporary philosophy, which have enlightenment significance for us to know the relationship between human and environment, the environment as a whole. Fa-zang’s Dharmadhatu Dependent Origination subsumes related thoughts such as prajnaparamita Madhyamapratipad, Alaya Dependent Origination, Dharmat Dependent Origination from the height of Buddha phala, and elucidates the world as dependent origination entirety which everything interdependence, interaction and mutual inclusion, thus reached the unprecedented height of Buddhist dependent origination, thus has enlightenment meaning to investigate different topics of ecological world view from the height of dependent origination entirety. But because of its research the world from Buddha phala, it dilutes the specific interaction and process in the realistic level relatively, thus has thinking differences f
