The using of social network theory for enterprises to discover market opportunities has always been one of research hotspots at home and abroad. This paper proposes a social network perspective analysis framework by using social network theory and in the combination of the whole process of EMOP (Enterprises Market Opportunity Discovery), and then discusses EMOP in detail from three network aspects of ration, structure and governance mechanisms. Finally the paper suggests some social network strategies to enterprises in their EMOP activities.