The structure of large-scale software systems are complex, and are difficult to understand for designers and developers. Traditional software metrics have the limitations for it, so we construct the static structure model for large-scale software by structural mapping and visualization, propose a integrated metrics set based on complex networks parameters according to the perspective of software engineering. The feasibility and validity of the metrics were testified through statistical analyzing the data from a set of existing software projects; and these results show that it can not only uncover the features of software structure such as scale free, small world, but also can get some latent rules about design and structure. The method can be conveniently used in actual project to help developers to improve comprehend, instruction test, measure and evaluate system