東南亞在亞太政經體系中的重要性逐日提升，從而使得主要大國持續策畫新區域戰略，積極布局東南亞國家及社會，藉以強化自身的影響力。臺灣在2016 年再次經歷政黨輪替，蔡英文總統啟動新南向政策作為建立臺灣與周邊區域全面連結的新戰略。新南向政策設定「以人為本」的主軸，除了重新建構臺灣的區域定位，亦在經貿合作、人才交流、資源共享與區域鏈結等四個面向深耕臺灣與新南向區域、國家及社會的協力關係。本研究分別從制度與網絡兩個軸線分析新南向政策的進展：首先，在制度軸線方面，本研究將梳理自2015 年正式提出新南向政策之後的構想、規畫、與執行三階段。再者，在網絡軸線方面，本研究亦將分析新南向政策所涉及的由中央到地方、政府到民間、國內到國際的三重利害關係網絡。最後，本文將以新南向政策的挑戰作為結語。 The strategic importance of Southeast Asia is increasingly weighted in recent years among Asia-Pacific major powers and Taiwan. Since 2016, as Taiwan experienced another power transition, President Tsai Ing-Wen initiated the New Southbound Policy as her flagship strategy to link up Taiwan with neighboring countries. A people-centered rationale of the New Southbound Policy aims at reconstructing Taiwan's regional identity, deepening its relation with regional countries and contributing to local societies. This paper discusses the development of the Policy by highlighting its institutional progress and networking efforts. Institutional progress will be dissected through examining processes of policy framing, planning, and implementation. Networking efforts are analyzed by discussing the role of central and local governments, state-society relations, and national-international links as the network of stakeholders to facilitate the Policy. The paper concludes by presenting the challenges ahead for Taiwan.