Methods and Thoughts are two important research perspective of Jing Xue. Current scholars wants to study the impact of Dan Zhu School upon Song's Spring and Autumn Annals Studies and there has been already a lot of conclusions, but they do not exceed what Ji Yun called "Studies Classics without Commentaries, to be the guidance of Song" and Pi Xi-Rui said about "the change in the Specifically to the General ."These statements only sufficiently describe the outline of the Dan and Song's methodology, yet the link of thought between the scholars of two generations is not fully presented. This article adopts a ideological point of view to look into the Neo Confucians' writings during Song Dynasty, and compares Dan and Hu An- Guo on how to exploit the important concepts of the New Spring and Autumn Annals Studies, the result shows that the methods and the thoughts of scholars from two generations have a lot of similarities, some of them can prove their interest in following Dan. This would help deepen the thinking about the impact of Dan Zhu School upon Song's Spring and Autumn Annals Studies as well as the contribution to the intellectual history of Tang and Song Dynasty.