The researcher tried to put Heidegger’s key idea about poetizing since 1930 into Ereignis and proposed that: first, Heidegger view of poetizing belongs to Ereignis; second, Heidegger’s saving idea of poetizing was built by Holderlin due to his historical destiny at the critical moment; finally, Heidegger positioned thinking and poetizing as close neighbors, and put them around the Ereignis. Therefore, the conclusion of the identical nature of poetizing and thinking is a philosophical view different from that of poetizing, and also different from that of literature in Heidegger’s poetic theory.