This article examines the role of emotions during the Arab Spring in Tunisia and Egypt in the context of collective level emotions in mobilizations. Emotions are understood as a catalyst whose mechanism of action is performed through repertories. This article seeks to answer how emotions, having a triggering role, are performed through repertoires while accelerating mobilization against authoritarian orders, creating the intersection of individual and collective level emotions in public spheres of Tunisia and Egypt, and thus affecting the transnational diffusion of emotions. The significant reason to address emotions is to explain what stimulated the Arab Spring and how it spread over the region starting from Tunisia and Egypt. This article synthesizes two literatures: International Relations (IR) and social movements studies in light of emotions and components of repertoires which are as follows: collective action, collective identity, symbolic politics, network society and information politics.