To look at the problem historically is to put Qin Shihuang under the historical conditions at that time, analyze his merits and demerits and study his merits and demerits. To study the historical environment of Qin Shihuang, we should not only pay attention to the general trend of historical development at the end of the Warring States period, but also pay special attention to the historical characteristics of Qin's formation since the founding of the People's Republic of China and its influence on Qin Shihuang. This latter point has been ignored by most people in the evaluation of Qin Shihuang so far. When we systematically study the history of Qin dynasty and then evaluate Qin Shihuang, it is expected to avoid the one-sidedness of the past and draw a conclusion that is more in line with historical reality.
According to this observation, it should be said that Qin Shihuang was an outstanding historical figure who made great contributions to the historical development of China, and was also a brutal tyrant. His achievements are the main aspects, but they can't cover up his sins; His sins are deep, but this should not erase his great historical achievements.
The most important historical achievement of Qin Shihuang was to complete the great cause of reunification and establish the first feudal centralized state in history.
Of course, the unification of Qin is an inevitable trend of historical development, and the objective situation has created conditions for reunification. Qin Shihuang came to the orchard when the unified fruit was ripe. But this historical inevitability does not mean that the role of individuals is insignificant. Why was reunification achieved by the State of Qin? Why should reunification be completed in 22 1 year BC? In these respects, it shows the personal role of Qin Shihuang.
Qin Shihuang's contribution to reunification, in addition to making decisions of great historical significance, also lies in making good use of people and being brave enough to make up for it. Some critics praised Qin Shihuang's "military command ability", and there is not much basis for this evaluation. Compared with his predecessors such as Qin Mugong and Qin Wugong, Qin Shihuang almost never directed the war directly; However, Qin Shihuang made more brilliant achievements than his predecessors, except for the luck caused by history, mainly because he was good at employing people and brave in change. On the eve of China's reunification, Qin gathered almost all the first-class military strategists and politicians in China. There are Wang Jian, Wang Ben, Liao Wei, Li Si, Yao Jia and Dunwei. Most of them are not from Qin, but they are all fighting for Qin. All military offensives and political strategic plans to defeat the enemy were formulated and realized by them. The role of Qin Shihuang is to give full play to their role, listen to their advice and be brave in correcting mistakes. For example, when Chu State was destroyed, it began to misuse Li Xin. After the failure, he immediately changed course, invited Wang Jian to go out and delivered all the soldiers in the country to Wang Jian. As a result, he won. This kind of situation, if compared with the situation that unbelief in Li Mu and disinformation led to national subjugation, can be seen that Qin Shihuang, as a monarch, was good at employing people and had the courage to make up for it, which had a great impact on historical development.
Qin Shihuang's contribution also lies in laying the foundation of a multi-ethnic feudal country. Some policies and measures implemented after Qin's reunification not only affected the feudal society in the next two thousand years, but also affected the present, such as the unification of characters. The unified measures and systems adopted by Qin Shihuang were bold innovations in the historical development at that time. He not only changed the political culture of the separatist regime, but also made the feudal society and economy develop smoothly. But also changed the inherent historical tradition of Qin in many ways. For example, the State of Qin has always been regarded as a backward area in the West by the Central Plains countries, and Qin Xiaogong is also troubled by this. Although the forces of Qin entered the Central Plains after the Prince of Zhao, the main ruling areas and base areas have not yet left the customs. By the time of Qin Shihuang, its territory had reached an unprecedented level. Faced with this situation, Qin Shihuang created various systems on the basis of the Qin system, but he was not confined to the inherent systems and traditions of Qin, which shows that his political vision was far-reaching. Most of the systems formulated by the Qin dynasty were inherited later, which can prove that these systems and measures were adapted to the historical situation at that time. Qin Shihuang, who created these systems, could not have done this if his political vision did not go beyond the limitations of Qin in the western frontier.