Based on Cai's "Shitouji suoyin" (An Allegorical Reading of The Story of the Stone), this article will investigate the relations between "Suoyin" Redology and tradition Classical studies. It will first review the shortcomings of a prevalent view that the "Suoyin" method is originated from the studies of "Chunqiu" (The Spring and Autumn Annals), and then illustrate how the exegetical studies of Shijing (The Book of Odes) influences on the hermeneutical horizon as well as the modus operandi of Cai's Redology. After a close examination, we assert that the hermeneutical approach of Cai's "Suoyin" is deeply connected to the traditional studies of "Shijing" and, among the three methods suggested by Cai, two of them are accorded with exegetical studies. These findings demonstrate the influence of classical exegeses on the criticism of literature.