Immigration into Europe has always been at the center of agenda of the EU. With the candidacy of Turkey, the issue of immigration is being discussed at an accelerating rate. That is why this paper aims to understand the dynamics behind the prospective Turkish migration into EU after membership and to provide a sound basis for its complicated nature. In order to do that, different theories of migration have been categorized at different levels of approaches and analyzed to understand the reasons for migration. To set the relationship between theory and reality of migration, the statistics on countries that joined the EU in 2004 and 2007 have been used. After identifying the reasons why citizens of these new member states migrate, the prospective Turkish migration has been analyzed accordingly. It has been found out that the reasons for Turkish migration will be mostly the same as those for new member states'' citizens. As a result of this, it has been concluded that the prospective Turkish migration will be so diverse and complicated and that the direction of migration will not only be from Turkey to Europe but also from Europe to Turkey.