With the global warming and environmental crisis, ecological paradigm shift happens throughout various fields of study such as philosophy, science, art, and theology. In the spirit of the second Vatican Council to embrace philosophy and science and the recent ecumenical movement, an ecological theology comes to the fore to create an ecological discourse within Christian denominations and also to facilitate ecological interfaith communication between different religions. This ecological trend in the theological field tends to criticize the hierarchical dichotomous Platonist thought structure within Christianity and emphasizes the immanent inter-relational aspects, which the modern philosophy of Felix Guattari and Gilles Deleuze shares great similarity with. The goal of this research is 1) to compare the ecological thought system within various trends of ecological theology and modern philosophy, and 2) to study the various inter-relational aspects of modern religious architecture, and 3) to review the possibility of the architectural discourse based upon the ecological thought system from the ecological theology and the modern philosophy.