French philosopher Emmanuel Levinas's phenomenology of the face has significant impact on post-Heideggerian thinking of God, though it does not focus on the problem of God. Based on the essay ”God and Philosophy,” this article aims to clarify the signification of Levinas's concept of God within his whole thinking progress. At first, I will discuss the position and function of the thinking of God in the philosophy of Levinas. Then, I want in the contexts of the face of the other, responsibility of the self, and society of the third to describe the basic characters of the thinking of God through the idea of Infinite. At last, I attempt to reflect on the theological implication of Levinas's thinking of God.