Abstract: Four Books are frequently mentioned in Grand Garden. JIA Bao-yu thinks they are the works which express the academic thoughts of their pre-Qin authors. However, the book Notes to Four Books has eisegesis and distorted these classical works. Both CAO and Bao-yu treat the two quite differently. To the Confucian classic Four Books, they are full of respect. In contrast, they disdain and defy Notes to Fours Books. They think it is used to secure personal gains. CAO’s views on Four Books were deeply influenced by the vogue of the time and his familial tradition.