On Guo Qin is divided into three parts: the first part, the middle part and the second part. It is the representative work of Jia Yizheng's thesis. It focuses on analyzing the mistakes of the Qin dynasty from all aspects, so it was named Guo Qin Lun. This paper aims to summarize the historical experience of Qin's sudden death as a reference for the establishment of the system and the consolidation of the rule in the Han Dynasty. This is a group of articles with profound insights and artistic appeal. The first part first talks about the reasons why Qin Zixiao's envoy emperor became stronger: geographical advantages, the idea of strengthening the country through reform, correct war strategy, painstaking efforts of several generations and so on. Parallel prose and meticulous description are used in writing, which is extremely exaggerated and exaggerated, resulting in a vivid momentum in language, just like the Qin people unified the six countries with an avalanche.