In recent years, Social Network Analysis (SNA) has been quickly developed as a widely accepted sociology research method. Social network analysis (SNA) is a sociological research methods with widely applicability. This paper presents the basic ideas and main concepts of SNA, summarizes the characteristics of government project supervision, and then introduces SNA into the study of government project supervision, the application method and steps. A new tool for quantitative analysis and research paradigm in the study of government project supervision have also been provided. The main contents include: establish relational matrix and sociogram between the actors; conceptualize the supervision into a series of supervision network with different principal functions; find the critical node in supervision network by the calculation of density, centrality and other network indicators; conduct cluster subgroup analysis, reveal the possible cluster subgroup and structural holes, so as to provide quantitative basis for the improvement of supervision performance.
