Ethnic politics is a common political phenomenon in contemporary multi-ethnic state, it is a kind of inter - ethnic interaction based on ethnic interests aiming at political power, and often appears to be resistance or even conflict. In Rwanda, at the important historical turning point of its independence, Hutus and Tutsis struggled for the political power, and the ethnic politics characterized by Hutus-and-Tutsis separation and opposition was constructed. After the independence of Rwanda, the opposite ethnic political position and the exclusive rule based on ethnic groups always exist in the dominant or recessive way. For Hutu, this kind of ethnic politics has a huge social foundation. The majority of ethnic groups are fully mobilized and organized to fight for and keep the 'shared' resources, which not only obtained the legitimacy and strength of so-called "majority rule", but also formed the "tyranny of the majority", eventually resulted in the worst genocide.