When discussing Liu Shipei’s Classics Studies, scholars have often focused on Liu’s doctrine about equating “Classics” and “History.” However, the doctrine appeared only in the early period of Liu’s works and, on the contrary, the later period of Liu’s works emphasized the distinction of “Classics” and “History.” Through discussion of the later period of Liu’s scholarship on the Zuo zhuan, this paper aims on the one hand to analyze the reason for Liu’s differentiating “Classics” and “History” at that time, and on the other hand to point out that Liu’s scholarship on the Zuo zhuan in his later period considerably supported the scholarship on the Zuo zhuan in the Han dynasty.