Abstract: Social information processing modal provided by Dodge with his associates on aggression, is mainly about how the online information processing affects later social behaviors, whereas lacks exact descriptions on database of social knowledge and past experiences. Domain Theory is about moral cognition, which indicates distinctions among individuals’ social judgments in moral, conventional and individual domains, also emphasizes individual differences in mixed-domain situations. After integrating emotion processes into social information processing modal, it is argued that domain theory which is relevant for describing underlying mental structures regarding the nature and boundaries of what is moral, could be used to explain what the database is like and its influence on the information processing. The integrated modal shows interactions between cognitive processes and emotion processes under social contexts, and leads to further consideration on multiple mental components, finally gives new directions for empirical researches and a considerable way for integrating different paradigms

Key words: social information processing modal, moral domain theory, aggressive behaviors, moral cognition