认识两极分化要从质的界定和量的分析两方面来考察研究。马克思依据社会成员对社会财富占有的状况最早对两极分化作出质的界定； 西方学者依据收入划分资本主义社会阶层， 并以此对两极分化作出量的统计分析。坚持质的界定和量的分析相统一，我们就会得出现阶段我国并没有出现两极分化的结论。 To understand the polarization needs to examine the research from two aspects: the definition of quality and the analysis of quantity. According to the fact that social members occupy the social wealth, Marx made the earliest definition of polarization on the basis of income. Western scholars classified the social strata of capitalism according to their income, and made quantitative statistical analysis on polarization. By adhering to the unification of qualitative definition and quantitative analysis, we will conclude that there is no polarization in our country at this stage.