This paper aims to analyze how the current major political parties in Turkey, namely the AKP, the CHP, the MHP and the BDP, perceive the EU project and asks whether the political parties give a place to a systematic and coherent EU policy in their party discourse as well as in their actions. On the other hand, departing from the fact that the last three governments all took a favorable approach towards the EU accession process, the paper seeks to find out how being in the government affects the political parties’ approaches to the EU project. The 2002 parliamentary elections in Turkey are taken as the starting point of the analysis in this paper since the outcome of those elections created a party system which has considerably different basic characteristics than the party system that prevailed in Turkey during the last decades which can be characterized by minority or coalition governments. In the 2002 elections the number of parties in the parliament reduced and the Justice and Development Party came to power as single-party majority government. In order to analyze the EU policy of the parties, the paper employs existing political party theories in the literature with profound qualitative research methods. In this respect, mainly the party publications between 2002 and 2010 were benefited for a discourse analysis. Apart from this, in December 2010 a questionnaire which was responded by 120 members of parliament was held in the Turkish Grand National Assembly and in depth interviews with five prominent deputies of four major parties were made. The data collected from the interviews and surveys were combined with a discourse analysis of the party publications and formed the basic argument of this study. Accordingly, the paper argues that the major political parties in Turkey do not have comprehensive and consistent structuring in their policies on the issue of EU accession. When party publications are examined, it is observed that their commitment level to the EU membership goal, which became part of the state’s foreign policy over the years, depends on the political conditions inside and outside the country and the expectations of their electoral base. The lack of consistent policy is sometimes in contradiction with their traditional ideological basis as well.