1.公卿原指三公九卿,后泛指朝廷中的高级官员。三公九卿为官名合称,始见于《尚书大传》。周代三公为最高辅政大臣,一说指太师、太傅、太保,一说指司徒、司马、司空。秦及西汉均未置。汉武帝时称丞相、御史大夫、太尉为三公。东汉改三公为太尉、司徒、司空,同为中央最高行政长官,实际权力因人而异。东汉末,曹操专权,罢三公,三公制遂废。以后历代皆有三公之号,多为加官、荣衔。《汉书》以《周礼》所记九个官职为九卿。后人将秦汉时中央九个行政长官合称 1. Gong Qing formerly refers to San Gongjiuqing, later refers to the high court officials. San Gongjiu Guan official name, first seen in “Shangshu Biography.” Three generations of the Zhou Dynasty as the highest minister of foreign affairs, one that Taishi, Taifu, CPIC, one refers to Stuart, Sima, Sagong. Qin and Western Han did not home. When the Emperor Wu of the Han Dynasty said the prime minister, Royal doctor, too Wei as three public. The Eastern Han Dynasty changed three for the tai-wei, Stuart, Sagong, the same as the central supreme chief executive, the actual power varies from person to person. Late Eastern Han Dynasty, Cao Cao, strike three public, three metric system then waste. After the ages have three official number, mostly for the official, the title of honor. “Han” to “Zhou Li,” nine positions recorded by the nine Qing. The descendants will be Qin and Han Dynasty when the central nine chief executive together