Migration in the historical process has not been individual; it has also affected the masses with its social consequences. Migration has been an important event in the history of the Ottoman Empire from its foundation to its collapse. The state has settled the Muslim people through immigration to the lands it conquered from the first periods. Although this state policy was partially interrupted, it continued until the last quarter of the 17th century. However, in this period, the crises experienced outside and inside changed the state’s policy. With the Holy Alliance wars that started in 1683, the heavy consequences, and the Karlowitz agreement, an intense migration movement from the European lands of the state began. Thus, the immigration and resettlement program, which was intended for abroad from the establishment until the end of the 17th century, started to change after this date. At the end of the XVII century and in the following centuries, there were migrations to the Balkans and Anatolia from the regions lost from the European lands of the state. The Ottoman Empire took some measures to prevent immigration and tried to stop or reduce immigration. The state gave instructions to the officials in the region for the resettlement of the forced immigrants to suitable places. However, despite the measures taken, migrations continued to come from the lost lands. In the study, the migration movements in the Rumelian lands of the state at the end of the XVII century and the beginning of the XVIII century will be tried to be given. In addition, the leading causes of migration and the measures taken by the state to prevent migration will be tested to be determined from the sources of the period. Ottoman State, Holy Alliance, immigration, settlement.