In recent years, anti-immigration movements have emerged and aim to gain the attention and support of the public. In two studies (Study 1, N = 775, student sample; Study 2, N = 500, non student sample) we investigated the role of positive and negative intergroup contact to predict support for anti-immigration movements from native Germans in a context of a recent intergroup conflict. Using path analysis, we analyzed the mediating processes of threat perceptions for the intentions to engage in collective action against immigration policies and the justification of the protests.Extending previous research on collective action, intergroup contact and threat, we further tested the moderating role of the identification with Germany. Findings from both studies supported the predictive power of intergroup contact as well as the mediating role of threat for collective action intentions and the justification of protests. Our results suggest that behavioral support was predicted by a strong identification with the threatened ingroup, whereass passive support was not. These findings highlighting the role importance of identification for movement support.