"Luerdi, L. (2016). Intervensi Turki Dalam Krisis Suriah (2011-2014). International Society, 3(2), 33–50." --- This research aims to explain Turkey’s intervention in Syrian crisis due to the perception of threat toward its security or domestic stability. Syrian crisis has directed threat indirectly to Turkey related to the existence of Kurd rebel group Kurdistan Workers Party or PKK’s activity in Syria. Syria makes the PKK affiliated to Syrian Kurd group Democratic Union Party or PYD an important actor particularly in northern area of the state during the crisis. Amid the instability caused by armed conflict in Syria, Turkey believes both political and military force of the PKK-PYD’s can injure its security or domestic stability now that the PKK still demands either territorial secession or autonomy for Kurd’s southeastern area. The research applies the worldview of international relations realism to describe Turkey’s behavior as a state with its power in responding to its surrounding. To strengthen the approach used, the research applies intervention theory which can explain the relation of Turkey’s intervention to the threat toward its security or domestic stability which it perceives as a vital national interest. Indeed, the result of the research shows a finding that such perception of threat encourages Turkey to commit intervention in Syrian crisis. Turkey’s intervention aims to remove the leadership of Syrian current regime with that of Syrian opposition group in which it trusts to be capable of creating stability, controlling, and restricting the political and military movement of Kurd groups in Syria.