Abstract: “Three Favorables Theory” is the essence of Deng Xiaoping Theory.In some extent,to analyze the relationship between “Three Represents Theory” and Deng Xiaoping Theory is to analyze the relationship between “Three Represents Theory” and “Three Favorables Theory”.This paper discusses their relationship from three aspects of epistemology:from the perspective of the course of epistemology,“Three Represents Theory” is the affirmation of “Three Favorables Theory”;from the perspective of requirement,they are the logical and historical unification;and from the perspective of purpose,“Three Represents Theory” deepens “Three Favorables Theory”.

Key words: &ldquo, Three Favorables Theory&rdquo, &ldquo, Three Represents Theory&rdquo, three foundations, three admissions