This thesis examines Thailand's foreign policy on Iraq-Kuwait War, which covers from August 2,1990 to February 23,1991 (under the premiership of General Chatichai Choonhawan). The study shows that the Thai Government supports the UN Security Council Resolutions condemning Iraq's invasion and occupation of Kuwait; it is also able to secure cooperation from foreign countries in solving the Thai labor problems caused by the Persian Gulf crisis. In the process, however, there are competitions and conflicts among various government bureaucracies, especially, between the Ministry of Foreign Affairs and the Interior Ministry. These are mainly due to different interpretations of national interests and their political roles, including interests of their parties' affiliation.