The aim of this paper is to describe and explain how the separation between state and church effects the power relations between state and religious groups and organizations. Former state church, The Swedish church, is in this paper, not included in the definition of religious groups. The reform (“stat-kyrka reformen”) took place between 1995 and year 2000.I’m examining if religious groups had any influence on the reform. My expectation is to give a clearer picture of religious groups and its power position in Swedish politics and society. A process-tracing method is used. I use different theories, theory of power and influence and theory of collective action. The reason for the decision to separate church and state was to handle social changes such as increasing secularism, pluralism and multiculturalism. This paper can however conclude that the state, after the reform, has shown an even greater, less secular, determination to connect with religious groups. I can also conclude that these religious groups had influence on the reform itself, partly because of its power resources and partly because its ability for collective actions.