This paper contributes to the literature on the Europeanization of national parliaments by looking at the behavioral dimension of Europeanization in the Swiss Parliament. We examine the differences in parliamentary interventions on EU-related issues over time, between types of instruments (agendasetting versus control) and across parties. Moreover, we measure the attention devoted to various policy issues and the tone of parliamentary interventions. Empirically, we analyze with descriptive statistical tools EU-related parliamentary interventions introduced in the Swiss parliament over 30 years . Results show that parliamentary attention to the EU is strongly influenced by the activism of the Swiss People's Party, a Eurosceptic party member of the Swiss governing "coalition".