International audience This article analyses the communication stakes which marked the relationships between the State and aids fighting field. It puts in the forefront that the associations mobilized in the management of the aids epidemic have brought to the foreground a societal public sphere, which have participated to the definition of social orientations and practices, outside political public sphere. That’s why State has used public communication, as a policy instrument, in order to reposition itself according to the social question of homosexuality In fact, this social question has been carried on by associations, built for one part on homosexual minority (defined by its political and societal dimensions). The results obtained from my PhD are a continuation of works carried out in the science of communication. They bring new conclusions on the new methods of contemporary State governments, in particular concerning the communication policy as a means to negotiate between the State and other social partners.