Abstract: Intergroup emotions theory holds that intergroup emotions are emotional reaction to ingroup and outgroup by individuals experienced when they identify with a social group, making the group part of the psychological self. Intergroup emotions theory takes the notion of a socially collective self as its starting point, borrowing directly from the social identity approach. Intergroup emotions theory is part of a cognition-affect-action tendencies triad. Intergroup emotions is distinct from the same person’s individual-level emotions. Intergroup emotions depend on the person’s degree of group identification. Intergroup emotions are socially shared within a group. Intergroup emotions contribute to regulating intragroup and intergroup attitudes and behavior. Recent researches provide much evidence for the theory, Intergroup emotions theory provides an innovative framework for attempts to reduce prejudice and improve intergroup relations.

Key words: social identity, intergroup relation, cognition- appraisals, intergroup emotions, collect action