Abstract: The ascending motion of Zhongyong(The Doctrine of Mean)essentially relies on the remodeling of concepts.From the Tang Dynasty(618 A.D.-907 A.D.)through the Song Dynasty(960 A.D.-1297 A.D.),the stylistic forms of explaining Zhongyong shifted in three types:annotation,argumentation and note.The annotations before the mid-Tang period mainly explained Zhongyong from the perspective of rites and attached importance to the interpretation of words and sentences.The argumentations during the Tang and Song Dynasties laid emphasis on analysis of concepts,in which some practical and political propositions were discussed,but some key concepts could not be fully explored.The notes written by scholars in the Northern Song Dynasty(960 A.D.-1127 A.D.)provided the best stylistic form to discuss about those key concepts freely and richly,among which some outstanding works helped discover the unique ideological value of Zhongyong.After that,scholars in the Song Dynasty might choose any of the three stylistic forms to express their own opinions about this text.These forms themselves also influence each other and develop together in the process.Exploring texts,propositions and concepts from the stylistic perspectives may provide a new way in the research of the ideological history in the Tang and Song Dynasties.

Key words: Zhongyong(The Doctrine of Mean), stylistic form, ideological history in the Tang and Song Dynasties