In the pre Qin era, Mensheng class occurred. But the actual reference unceasingly changed along with the development of social history. In recent years, researches on Mensheng class academic circles are very rich. Especially in the law establishment and characteristics of Mensheng class status, between the Han and Tang Dynasties Mensheng status changes, Mensheng living status of progress has been made more prominent. But the focus of the Mensheng class failed in politics, the future direction of development should be a comprehensive study combined with economic, culture, military and other aspects.