Pan Chun(潘淳),has another name called Pan ZiZhen(潘子真), was a poet from the Bei Song Dynasty. Pan ZiZhen served Huang ShanGu (黃山谷)as a teacher. Passing on the family tradition, he wrote “Pan ZiZhen’s Poetry Commentary”. Guo ShaoYu’s“The textual research in Song Poetry Commentary” praises that “Pan ZiZhen’s Poetry Commentary” is better than “Wang ZhiFang’s Poetry Commentary” and “Li XiSheng’s Poetry Commentary”. We read “Pan ZiZhen’s Poetry Commentary” today ,. it judges poet's poem, talks about poem art, pursues the poem source and course, discusses the anecdote of poetry circles, the style and features is very various. Its structural characteristic is writing at will, leave the space size alone. It’s style is numerous, and a piece of Poetry Commentary is a story.The advantage is flexible freely, lively, and hit the core. The shortcoming can not be criticized of a text tightly, is loosely organized, and is identical with other books. For a long time, “Pan ZiZhen’s Poetry Commentary” has come non- complete, and the research of “Pan ZiZhen’s Poetry Commentary” has been fragmentary all the time.This article try to research in Pan ZiZhen’s Life experience background, name and edition of “Pan ZiZhen’s Poetry Commentary”, and make a lot of comments on “Pan ZiZhen’s Poetry Commentary”. I hope to represent the train of thought of its theories.