The full name of Sikuquanshu is Qin Ding Sikuquanshu, which is a large-scale series compiled during the Qianlong period of Qing Dynasty. Under the auspices of Emperor Qianlong of Qing Dynasty, it was compiled by more than 360 senior officials and scholars, including Ji Yun, and copied by more than 3,800 people. It took 13 years to compile. It is divided into four parts, namely, Confucian classics, Confucius and poetry collections, hence the name "Siku". According to Wen Jin Ge Ji, * * * contains 3,462 kinds of books, 79,338 volumes (equivalent to more than three times of Yongle Dadian) and more than 36,000 volumes.
The first draft was completed in the 47th year of Qianlong (1782) and the 57th year of Qianlong (1792). Emperor Qianlong ordered seven copies of Sikuquanshu to be hidden all over the country. The first four volumes are kept in Wen Yuan Pavilion of the Forbidden City, Wenshui Pavilion of Shenyang, Liaoning, Wen Yuan Pavilion of Yuanmingyuan and Jinwen Pavilion of Chengde, Hebei, which is the so-called "North Fourth Pavilion". These three copied parts are kept in Wen Hui Pavilion in Yangzhou, Wenzong Pavilion in Zhenjiang and Wen Lan Pavilion in Hangzhou, which is the so-called "South Three Pavilions".
Sikuquanshu, the largest cultural project in ancient China, made the most systematic and comprehensive summary of China's classical culture and presented the knowledge system of China's classical culture. Sikuquanshu is the richest and most complete integrated work of China traditional culture. China's literature, history, philosophy, science, engineering, agriculture, medicine, almost all disciplines can find the source and blood.