The stratum culture is the cultural explanation of the social stratum in a given society and the cultural environment for the development of the stratum with certain social relations and life styles. A proper stratum culture can be used to reflect modernity. Behind farmers' problems in China, there exist stratum relations and the establishment of a stratum culture concerning a rational market economy and a legal society. Only by solving farmer's problems in China, can we form an integrated social structure and avoid a negative circle of stratum relations.