More than forty Du Fu’ s poems which are definitely related to Buddhism and Zen indicated his satisfaction on being a virtuous man,apprehension of the actual emptiness of existence and seeking Buddhism.we can feel that he studied more thoroughly on the Buddhism theory,seeking on the First Dogma,searching the Unsticking Minds thus showing his spiritual requirements and at the same time consciously and unconsciously carried on Returning Life theory Mahayana Buddhism has been advocating.