Generally speaking, he made great contributions to the unification of the six countries, but the tyranny in the later period made the Qin Dynasty a short-lived dynasty, so people had different opinions on him.
Judging from the historical development, he strongly promoted the development of China's feudal history. Judging from his success in unifying the six countries, he has outstanding military talents. After reunification, the policies of unified measurement and implementation of Confucianism, ousting a hundred schools of thought and unifying people's wisdom reflected his outstanding political talent. However, in this process, in order to admire Confucianism, he burned books and buried Confucianism, which seriously damaged the development of China culture. Although the starting point is right, the way is too extreme and cruel. He built large-scale palaces, wasted people's money, increased taxes, and made people live in dire straits. This series of tyranny also reflected his later complacency, which turned the Qin Dynasty into a short-lived dynasty.
Qin Shihuang has both advantages and disadvantages, so we should evaluate him dialectically.
Because I am in Grade Three. I don't remember what it means. You can add its meaning yourself.