The interaction with the strategic audiences of the Brazilian Parliament has as its basic characteristics the complexity and diversity of profiles and must be supported by a Communication Policy, with well-defined guidelines, principles, actions and strategies to be assumed by all its representatives. The article, supported by a bibliographic review that mainly contemplates the concepts of communication policy and public communication, rescues Brazilian cases of communication policies in companies and organizations (in particular federal institutes and public universities), proposes a methodology for the construction of a Communication Policy for the Brazilian Parliament.