On the basis of the development of mathematics in the Spring and Autumn Period and the Warring States Period, the earliest mathematical monograph in China appeared in the Qin and Han Dynasties, and Zhoupian ·suan Jing and Jiuzhang Arithmetic are the oldest arithmetic books that have been handed down so far. Although these two ancient books were written in the Western Han Dynasty, they were not written by one person, but were revised and supplemented by many people, and many of them reflected the mathematical achievements in the pre-Qin period.