衛乃春秋重要諸侯，然未見學者梳理衛卿譜系。本文以《春秋經》、《左傳》為範圍，疏證歷代衛君之卿。任卿三代以上世卿有甯氏、石氏、孔氏、北宮氏、大叔氏五家，任卿二代者為孫氏與公叔氏。經本文歸納，有六卿與五卿在任之衛君區段達47.06%；時間總計160 年，已佔春秋時代255 年之62.75%。以量化方式推知，衛與晉、鄭、宋諸國皆有六卿之制。

Wèi State was an important vassal in the Spring and Autumn Period; however no scholar has ever sorted out the genealogy of Qīngs in Wèi State. This article takes Chūn Qiū Jīng and Zuǒ Zhuán as the scope to elucidate the Qīngs in Wèi State in successive dynasties. There were fi ve big families that have served as Qīng for more than three generations. They were clan Níng, clan Shí, clan Kǒng, clan Běi-gōng, clan Dà-shū. Those who have served for more than two generations were clan Sūn and clan Gōng-shū. According to the summary of this article, the percentage of timeframe that Monarchs in Wèi State had six Qīngs or fi ve Qīngs were 47.06% and that was 160 years. The total timeframe of Spring and Autumn Period was 255 years, and Wèis’ were about 62.75% of it. Inferring in a quantitative way, Wèi State, Jìn State, Zhèng State and Sòng State all had the system of six Qīngs.