Abstract: When discussing poetry, SIKONG Tu employed the unique reasoning styles. The first one is the elaboration through fabricating a similar environment. He created some artistic state in an attempt to describe the styles of certain kind of poetry through the poetic language. This will achieve the effect that the readers can resonate with such state in the imagination and learn the different styles of poetry. The second is the direct discussion. This is shown in some lines of each grade. And the poetic features can be highly generalized through general language.