Qin Shi Huang has always been a historical figure that people love and hate, he founded a unified kingdom, unified the six kingdoms, unified the system, opened up territory, and built water conservancy, but his tyranny was also suffocating, during his reign, Qin Shi Huang in order to satisfy his own selfish desires, extravagant waste, the construction of palaces, spent a lot of manpower and material resources, so it was also criticized. Moreover, he also forced his middle father, Lü Buwei, to die. But Lü Buwei and Yingzheng were not biological father and son, although Lü Buwei helped Qin Shi Huang ascend the throne, he still ended up with an unworthy death.
Lü Buwei supported Yingzheng to ascend to the throne, but did not get good rewards. Lü Buwei is a businessman, quite accomplished in business, also very good in politics, can be said to be a very perfect person, is a generation of famous courtiers, according to the reason that emperors are love talent, not to mention Lü Buwei has kindness to Yingzheng, why would Qin Shi Huang take revenge?
First, Lü Buwei and Zhao Ji, the mother of Qin Shi Huang, had always been involved, and Zhao Ji was originally Lü Buwei's concubine, but was later dedicated to Qin Shi Huang's father, and later gave birth to Qin Shi Huang. Although Qin Shi Huang was small at that time, in feudal ancient times, this kind of incest naturally brought shame to the imperial family. Qin Shi Huang as the first emperor of the ages could not tolerate it, even if Lü Buwei was kind to him, but Lü Buwei's behavior violated the emperor's red line, and naturally Qin Shi Huang would not let him feel better.
Second, another reason is that because Lü Buwei is too good, all countries want to come to see Lü Buwei's style, and Qin Shi Huang is afraid that Lü Buwei will use this to form his own power and thus challenge the imperial power, so he plans to understand him. Later, Qin Shi Huang wrote a sentence to Lü Buwei, believing that Lü Buwei did not make any contribution to the country, but instead occupied a high position and enjoyed prosperity. Lü Buwei naturally knew Qin Shi Huang's intentions, and in the face of the emperor's step by step, he had to finally drink poisoned wine himself and end his life.