The new conclusion of "other social strata" and the new policy of non-public economy in the report of the 16th conference is the vivid model for reinforcing and developing wide patriot and united front under the new historical condition of implementing the important thought of the "Three Represents".

Challenge and Countermeasure Research to United Front Work of Social Classes Differentiation in China;

Since the reform and opening up, the division and restructuring of social classes in China has injected vitality into the social structure, while it has also brought about social and economic differences as well as the differences in lifestyle and interest identification between the different classes, and even produced relatively sharp conflicts of interests.

By analyzing the differences in morality and culture recognition between different social classes during the social evolution phase,this paper attempts to find a solution for social contradictions in the light of "peaceful coexistence with differences" so as to construct a harmonious society.