During the Wei and Jin Dynasties, from Zheng Mo's Wei Jing Shu to Xun Xu's Jinzhong Jing, it began to be divided into four parts and covered with a set of books (Sui Shu? Jing Ji Zhi) is divided into four parts: A, B, C and D, which correspond to each part of Qilue respectively, and its content is very similar to the four parts of Jing Shi Zi Ji in later generations.

Four Bibliography compiled by Li Chong in the Eastern Jin Dynasty, "The Book of B and C was changed because of the four old books of Xun Xu" (Preface to Seven Records of Ruan Xiaoxu), which laid a four-part classification system of classics, history, scholars and collections.

After that, although Wang Jian's Seven Chapters and Ruan Xiaoxu's Seven Chapters appeared, the compilation of Jing Shi Zhi by Sui Shu in the early Tang Dynasty still took the road of quadrupling, which influenced and made quadrupling the mainstream of book classification in the future.

It was not until the Qing Dynasty that the Catalogue of Sikuquanshu was revised, which was the peak of the quartering method. The categories are more detailed than ever, and the division and combination are more reasonable. Today, it still has very important reference value for us to compile ancient books.