社會網絡分析（social network analysis, SNA）的發展已有百 年的歷史，但最近十年才開始廣為公共行政學界注意與使用。由於現 今公部門或公共政策去中心化與多元參與的特質， 導致網絡管理 （network management）的能力與需求日益殷切。社會網絡分析的使 用，從實務上來說，恰可為這些實務問題的分析與提供管理策略，找 到循證（evidence-based）的基礎；從方法上來說，對政治與決策行 為的理解，也提供了一個有異於傳統以屬性研究為核心的研究方法。 本文將介紹社會網絡分析的料蒐集方法，以及程度中心性、中介中心 性、集中性與結構洞等重要指標操作化的方式，與其在公共行政與政 治學領域的研究議題與可能的應用效益，並兼論可能的限制。

Social network analysis (SNA) has developed at least a century so far, but just been noted and applied by the academy of public administration in recent decade. According to the fact that the characteristics of decentralisation and multiple-participation in public services and policy processes, public administration researchers have realised that SNA can help them address many relevant research questions nowadays and provide appropriate strategies of network management in practice. This paper starts in introducing the operationalisation way of data collection and some important indicators including degree centrality, betweenness centrality, centralization, density and structural hole, and followed by their application subfields and effectiveness in public administration and political researches. Finally possible limitations of SNA are discussed