泰國政治呈現的多元面貌與變動性，豐富了泰國政治的多姿多彩，吸引了不少學者對於泰國政治型態進行研究分析。對於泰國當前政治所進行的多方面和層面的研究中，筆者認為，除了軍人之外，泰王蒲美蓬占有一定的影響力與潛在作用力，在政治上處於獨立超然，更是穩定與安定政局的主要力量。惟專門對於泰王的研究，並不多見。 從泰王於1946年6月9日登基開始至2011年，在泰國的政治變遷及其發展過程，泰王是代表當代君主立憲政體的獨特政治體制，尤指他扮演的泰國政治及社經方面的相互關係和詮釋之角色，並且隨著時代不同和政局演變，其代表角色也跟著有所變換。泰王蒲美蓬給予泰國的深遠影響是值得關切的議題。另外，泰王雖然在體制上看似有名無實，但實際上卻有重要的影響力，是其他同為君主立憲制國家難以比擬。 泰王蒲美蓬對於民主政治有自身的看法，並利用身處君主立憲制之政治角色以經營和推動理念。本文將經由多層次的角度探究泰王蒲美蓬在君主立憲體制的角色之走向和變遷過程，綜合政治、經濟、社會和宗教等面向和歷史緣由，了解泰王和政府間與政局發展的相互關係，以及獲取泰王支持的法理關係。最後將針對泰王的家父長角色和國家支柱的角色進行論證，尤其是隨著泰王年事已高及健康因素，將對泰國政局有所衝擊，其對於泰國國王的君主立憲角色或有所影響。 The Thai politics presents a multi-dimensional appearance and mobility that enriched its variety. Many scholars are drawn to conduct research on its diversity. Besides studying the military system, the King Bhumibol Adulyadej holds an unique position in Thai politics that worths its own attention. In addition to his influential power on dictating the direction of the politics, the king provides a fundamental stability in any political situation. However, there has been few studies specifically focused on the King of Thailand. The king Bhumibol Adulyadej started his ruling since June 9, 1946. During the political development and revolution, his reign embodies an unique political system in modern constitutional monarchy, especially the King''s acting role in tying the political issues with the socio-economical aspects. As time changes, the constitutional role of the King Bhumibol Adulyadej also changes. It is important to realize that the King Bhumibol Adulyadej gives a far-reaching effect that deserves increasing consideration. Although the apparent role of a king seems to binomial, the King Bhumibol Adulyadej exhibits a crucial influence that such role in other constitutional monarchy countries is incomparable. King Bhumibol Adulyadej has his own views of democratic politics. He uses his political role to promote and exercise such concept. Bringing together analyses on politics socioeconomics, religions, and history, this paper discussed the changes of the constitutional role of King overtime through studying the mutual relationships among the King, government and the state. Furthermore, the paper also discussed the potential impact of the King''s advanced age and deteriorating health to the current political situation and his constitutional role.