This article discusses citizenship education, education policy and discourse to explore their relations with the exercise of power in society. Taking the case of 1990 and 1997 legislative debates on citizenship education policy in Hong Kong, it briefly surveys the substantive arguments favouring or opposing the retention of government controls over politics in schools. It then examines in more detail the discourses used by legislators which constitute students, teachers and the government. This discussion shows that not only does citizenship education represent a power relation between the state and citizens, with policy representative of the power of the state over educational workers, but also that the targets of policy are empowered and disempowered through the strategic use of discourse.