CDA studies on out-groups, i.e. immigrants, within Wodak's Discourse-Historical and van Dijk's Socio-cognitive approaches along other approaches, have suggested methods and analytical categories through which discursive representations of social groups are investigated. Consequently, several listings of relevant analytical categories have been proposed and applied to many subsequent studies. However, the variety of the proposed methods in representation of social groups by various scholars and the often unclear accounts for the links among various levels of discourse analysis seem to have created a multitude of discursive strategies that can be overwhelming if not confusing. This paper is an attempt to make explicit various levels of discourse analysis on representation of social groups from detailed textual analysis to discourse topics and tries to show how micro-level analytical categories are related to macro-structure within various levels of contexts. Specifically, a three-level analytical framework is suggested for textual analysis of the representation of social groups which divides the text analysis into three domains of social actors, social actions and argumentation. It is suggested that the analysis should look at what is (not) in the text in terms of the three domains mentioned, and investigate how these domains are linguistically realized through a set of linguistic processes/mechanisms.