The Actor-Network Theory (ANT) is a theoretical approach for the study of controversies associated with scientific discoveries and technological innovations through the networks of actors involved in such actions. This approach has generated studies in Information Systems (IS) since 1990, however few studies have examined the use of this approach in the e-government area. Thus, this paper aims to broaden the theoretical approaches on e-government, by presenting ANT as a theoretical framework for e-government studies via published empirical work. For this reason, the historical background of ANT is described, duly listing its theoretical and methodological premises. In addition to this, one presented ANT-based e-government works, in order to illustrate how ANT can be applied in empirical studies in this knowledge area.