In this article, recent researches on affect in social cognition are introduced and discussed. First, affect has an adjustable function and the ‘Feeling as Information’ model assumes the role of affect for daily judgments. An empirical study will be presented, confirming the informative function of affective states. Second, affect has a role of regulating the continuation and persistence of performance. Affective states provide information for stop-rule. Third, the relation of affect to cognitive style and the motivational function of affective states will be discussed. Fourth, a novel technique of measuring implicit attitudes using a misattribution procedure is presented. Finally, a SAC model, an integrative model of affect and cognition, will be shown and discussed.