(1) "The Table of Princes and Kings in the Book of Han" says: "The method of setting up additional benefits." The note quotes Zhang Yan as saying: "Lu Zheng said that when the princes are granted a limited number of titles, they are called additional benefits. Or they are called Amei princes. , there is an emphasis on the Dharma." Yan Shigu said: "Those who benefit from it are based on the meaning of Confucius' saying, "Seek to gather benefits and attach them to others." p> (2) "Han Shu Gao Wu Wang Zhuan Yan Ling King Liu Jian Biography" says: "Since Wu Chu was executed, the power of the princes was taken away, and the left official attached to the party's legal establishment." Annotated Yan Shigu said: "All new laws and regulations "Zuoguan" is explained in "Biao of Princes and Kings", which means "the desire to benefit the princes and kings" (3) "The Book of the Later Han Dynasty" notes Li Xian: "Emperor Wu." At that time, there was a plan for Huainan and Hengshan, and the law of Zuoguan was established. "Those who benefit from Aqu will have important laws."

Based on the above three points, we can roughly summarize. The general content of the Additional Benefit Law promulgated by Emperor Wu of the Han Dynasty is as follows: Bureaucrats are strictly prohibited from amassing wealth for princes and kings; bureaucrats are strictly prohibited from colluding with princes and kings to seek benefits for princes and kings. In short, the promulgation of the supplementary benefit law was to isolate the princes and kings, making them unable to gather finances and form their own small groups politically.