As more and more unearthed documents about the Analects of Confucius are discovered and published since the 20th century, which has made a big difference in the studying of the Analects of Confucius. These unearthed documents mainly including the Analects of Confucius discovered in Dunhuang and Tulufan area, which is generally acknowledged written in the Tang dynasty, the one unearthed in Ding county, Hebei province, which is generally acknowledged written on the bamboo in the Han dynasty, Scattered in the bamboo slips manuscript about the Analects of Confucius excavated at Guodian and collected by Shanghai Museum that belongs to the Warring States Period, the newly discovered bamboo scraps of the Analects of Confucius written in the Han dynasty, which is unearthed in Zhenbaidong, Pingrang city, North Korea, and some scraps about Zizhang chapter unearthed in Xuanquan county. This paper is trying to contrast the different characters in these unearthed documents about the Analects of Confucius with the current version. I hope to make a comprehensive and systemic study for the future study in the different characters of unearthed documents about the Analects of Confucius. In order to do a better research of different characters of unearthed documents about the Analects of Confucius, firstly, this paper will introduce the research status of the Analects of Confucius and its unearthed documents in detail. Secondly, I want to deeply studying the different characters and try to classify it into five categories aimed at comprehensively studying the different characters in these unearthed documents about the Analects of Confucius.