Abstract:Information and related technology has become the basic platform for enterprise to create value-added products and services. With enterprises increasingly rely on information system and related technology (such as information,soft system,communication and so on),and subsequent massive investment in IT, enterprises are also facing a problem of how to prevent the threat and the commercial risk in the process of IT investment and application. Taking IT application as the intermediate variables, Research construct the relationship between IT governance and IT performance, and the theoretical model of the effects of IT governance on IT performance, then use structural equation model to make empirical analysis. The results show that there is no direct positive relationship between IT governance and IT performance, but through the intermediary role of IT application IT governance has positive effects on each dimension of IT performance. So IT governance obtain the corresponding IT investment effect through the promotion of IT application level. This results of this study further improve the theoretical relationship between IT governance and organizational performance, and has a certain practical significance for the path selection of the informatization construction.