This paper is concerned with the characteristics of literary thoughts in the Former Han. It first explores the classical ideas, holding that the characteristics of literary thoughts in the former Han are closely related to the formation of classical ideas. Under the influence of classical ideas, some transformation took place in writing and criticism, from which we learn that literary theory, as a political theory or philosophical theory, is a reflection of conflict between thought and power. A further survey is made about the ideas different from this main ideology such as Heart of Fu of Sima Xiangru, etc.