Abstract: Quantitative research advances the birth and the development of scientific psychology,and has acquired rich achievements,but it has itself invincible defects.Qualitative research can conduct thorough and dynamic exploration comprehensively,but is suspicious of subjective tendency.Quantitative and qualitative researches diverge from each other on theoretic foundation,ideological perspective,participant degree,researching procedure,data character and collection.These two researches mutually complete each othe...