After Guan Zhong, Confucius once said: "Guan Zhong helped Huan Gong to dominate the princes and rectify the world. Without Guan Zhong, we are all subjects under the rule of barbarians. " It can be seen that Guan Zhong assisted Huan Gong and saved the Chinese people in the Central Plains from the intrusion of the barbarians and northern emperors. He was indeed an outstanding politician.

Guan Zhong is not only an outstanding politician, but also an influential thinker. His thoughts have left precious wealth to future generations. Guanzi, which has been handed down to this day, was summarized by later generations according to Guan Zhong's thoughts and remarks. His thoughts on the rule of law have far-reaching influence on later generations, and some of them still have certain reference significance today.