本論文研究的主題是泰國為維護其邊界安全作出的國家安全政策。泰國位在印度支那半島的中心點，當周邊國家發生動亂時，泰國就成為政治難民逃難的目的地，而且入侵的人數非常多。先後進入泰國的政治難民有泰北孤軍、馬來亞共產黨及柬埔寨難民。本文探討他們進入泰國的原因、在泰國的行為、及泰國政府處置政治難民的政策及最後的歸屬。當時泰國國內也深受共產主義的迫害，使得泰國政府除了要消除來自國外的威脅，還要利用這些難民來協助阻止泰共的活動，或者利用這些難民團體構建其邊疆的防衛圈，成為防衛泰國邊界的前沿軍隊。最後泰國政府以其維護邊境安全有功的理由給予泰北孤軍和馬來亞共產黨人泰國籍，對柬埔寨難民則採取遣返回國或送至第三國安置的辦法。總之，泰國政府以包容性的政策，容納週鄰政治難民，藉以防衛其邊境並開發其邊疆荒蕪之地，是乃泰國邊境安全政策成功之道。 / This paper focuses on Thailand’s national security policy for its boundary issue. Due to the central position in Indo-Chinese Peninsular, when there happened the political turmoil of the surrounding countries, territory of Thailand has been used as a shelter for a large number of political refugees. Those political refugee groups include the Chinese Nationalist troops (KMT), Communist Party of Malaya (CPM), and Cambodian refugees. The reasons of political refugees entering into Thailand, activities and Thai government policy towards them, would be discussed in this paper. Since the 1950s, Thailand suffered from rebel activities of the Communist Party of Thailand, so Thai government took advantage of combating experience of political refugees to fight against those Thai Communists in bordering area. Thai government even gave them the land and agricultural instruments to cultivate in bordering area and encouraged them stay by giving Thailand nationality to KMT troops and members of CPM, but repatriated those Cambodia refugees to back to Cambodia or to resettle in the third country. Thai government adopted an accommodate policy towards those political refugee groups, by using them to defence its border area and develop the economy, successfully to maitain its border security.