Although considerable research has been devoted to different aspects of the Cyprus conflict, rather less attention has been paid to politico-psychological factors associated with the internal dynamics of the conflict. This paper aims to understand and interpret the politico-psychological factors underlying the Cyprus conflict from the social identity approach. Firstly, this approach my help us understand and analyse the socio-psychological factors underlying the conflict. Secondly, the social identity approach may contribute to narrow the gap in the literature on the psychological factors involved in the Cyprus conflict. The concept of social identity where members of a community are expected to think and behave in certain ways has a critical role in some intergroup conflicts. Within this framework, the paper attempts to illustrate how the social identities have been constructed, and categorised as ingroups and outgroups throughout the history, and to explain under which circumstances different social groupings lead to intergroup conflict. Accordingly, throughout the history different social identities have been constructed in Cyprus. It seems that during the Ottoman period since there was no political competition between the social groups, no political conflict arose. However, when two distinct nationalism florished under the British rule, the Greek Cypriots and Turkish Cypriots embraced conflicting national aspirations. In Cyprus, two social groups' strong attachment to their ethnic/national identities could not have lead them to cooperation, but competition and rather conflict.