當今公共政策可視為由國家機關與利益團體所形成的政策網絡中行動者相互競爭與互動結果的反映，亦即國家機關與利益團體之間的協商、互動，及利益交換關係可以各種政策網絡型態表示之。而有鑑於過去由中國國民黨控制的國家機關，長久以來因為歷史因素、政治環境與政體結構使然，在許多公共政策的形成與執行過程，國家機關總是能夠較有效地貫徹其政策偏好並遂行其意志，以實現其政治、經濟利益。 本文試圖結合政策網絡途與國家機關自主性之概念，應用分析我國在威權體制與民主轉型等政治變遷過程中全民健保政策之形成與發展，以全民健康保險政策網絡概念說明國家機關與利益團體之間的互動關係與行為，並著重政策網絡的參與者組成、所持政策利益及其互動關係之轉變，以及對於我國全民健康保險政策形成之影響。 在進行步驟上，本文先界定國家機關自主性，討論政策網絡之概念、類型與對公共政策的影響，繼之將其運用於我國全民健康保險政策過程，以分析我國全民健康保險政策網絡之形成、發展與變遷。最後，提出研究發現與政策建議。 研究發現隨著國家機關權力結構的改變，政治經濟環境的變遷，政策網絡之參與者利益散布、互動模式與資源分配亦隨之轉變，亦即雖然國家機關仍主導政策執行與改革，但民間社會的參與與需求亦不容忽視，尤其這些相關利益團體經過政策學習的過程，開始展現不同的行動策略，促成政策網絡互動方式的變遷，也影響政策執行之效果。

　　　　　Since the 1950s, it is indeed that the state which has been dominated by Kuo-min-tong party owned high degree of autonomy and the mechanisms for translating its own interests into policy and achieving its policy goal. Recently, the nature of the relationships between interest groups and the state can be seen as the concept of policy network. In other words, the public policy process is regarded as outcomes of the interaction between the state and various interest groups. In the study, I integrate the concept of state autonomy as well as the approach of policy network to analyze the creation, development and its maturation of Taiwan National Health Insurance (NHI) policy networks. Also, I discuss distinctive power structure of the state in different NHI policy network's phases. With this purpose, in the research, I first introduce the concept of policy networks and their types to describe state/interest group realtions. Then, the focus of the research concentrates on the creation, development and maturation of NHI polciy networks in formulating NHI policy agenda, planning program, legislating law and implementing policy. In addition, I especially describe who is involved, how they act, and who makes the final decision in examining the policy process. Finally, I will provide my research findings and present policy recommendations. The key findings are the nature of the relationships between state actors and interests groups and the impact that these relationsips have on policy outcome.