本文擬探討塔信政權與泰國政治變遷的關係，從兩方面來分析泰國政黨政治體系的改變，一是從制度面討論1997年憲法的選舉制度對泰國政黨政治的衝擊與影響。二是從憲法的實踐和非制度化因素，分析塔信政權之興起與終結，來觀察泰國政治變遷的過程與意義。塔信政權是在1997年憲法下所運作的產物，最後卻被長達15年不見的軍事政變所終結。本文深入剖析塔信政權執政過程，探討為何會發生軍事政變的原因，以及分析這(場政變)對泰國民主產生什麼樣的意義與影響。 / This study examines the relationship between Thaksin's regime and political change in Thailand. It analyzes the change of the Thai party system from two respects. First, it discusses the impact which the new electoral system of the 1997constitution had on the Thai party politics. Second, it analyzes the rise and the fall of Thaksin’s regime from the constitution practice and the non-institutional factors in order to observe the process and the implication of political change in Thailand. Thaksin’s regime is the result of 1997 constitution. However, it was ended by a military coup which had not happened for 15 years. We discuss deeply the history of Thaksin’s regime, why the military coup took place to close this regime, and the influence of this military coup on Thai democracy.