Abstract: The traditional land system of Dai nationality in Xishuangbanna has a distinctive national characteristics: In this system, there is a illusion of equality within farmers, and their life is relatively welloff, as well as farmers form a seemingly natural relationship between rights and obligations with the feudal lord Besides，they believe in Fatalistic view of Buddhism, all of these result in farmers person’s longterm attachment to the land, acquiescing in land ownership of the feudal lord inwardly, and collective unconscious of inequality exploitation. Therefore, compared with other regions, its class contradictions are more moderate, and form a constant, harmonious social structure and production and living order, as well as the system of feudal lords has stabilized lasting nearly 800 years.