This study adopts the methods of documentary analysis from the perspective of Religious Ethics, and in the beginning explores what Christianity can do under globalization. The first task is to clarify the authentic meaning of globalization. Secondly, the paper examines the response of religions to the conflicts and challenges of the waves of ”ten-ization” social movements, and religious environmentalism under globalization. Finally, the author proposes that Christianity should be responsible for the world in the process of globalization, echoing and starting from the global ethic which Hans Küng offered, through inter-religious dialogue, promoting a globalizing ethics. The particular focus for this discussion is Christianity in China and Taiwan. And hopefully Christianity will enhance the positive effectiveness of globalization, and bring lasting peace for the world. Christianity looks forward to this development.