This paper summarizes seven theories about the relationship between income and subjective well-being： need-fulfillment theory, social comparison theory, adaption theory, aspiration theory, the model of evaluation as moderators, homeostatic theory and the conceptual referent theory. They reveal the psychological mechanism of the relationship between income and subjective well-being from different aspects separately, and every one has its own stongpoint and shortcoming. Future researches should futher test these theories and try to integrate...
