This blogpost outlines the research agenda of the ‘Migration and Civil Society’ line of investigation, which aims to explore the relationship between EU law and pro-migrant civil society actors. Without being exhaustive, it foregrounds four ways in which this relationship can be approached. The first possibility is to analyse EU law’s understanding of civil society actors’ participation in EU institutional life. The second is to examine EU law’s approach to these actors’ pro-migrant acts of assistance. The last two possibilities require a shift from institutional to civil society perspectives, by examining their critiques of EU law and their strategies of EU legal mobilisation.