Abstract: This paper introduces the theory and method of complex networks and complex networks community, puts forward the complex networks community characteristics metrics method of software architecture based on complex networks community.Transforms SA structure into a complex network model, and through Modularity, hierarchical structure, overlapping communities to metric complex networks community characteristics of SA.Finally, verifies the research though by example.Practice shows that this method can better metric and assessment for SA's complex networks community characteristics of a system, and provides the basis for further development.