This paper proposes a reference approach to the establishment of Engineering Management Informatization (EMI) through the analysis of various stakeholders involved in the implementation process. It also brings up the 4-Layer architecture (SARI) which consists of Service Layer, Application Layer, Resource Layer and Infrastructure Layer by the analysis of the process of evolution and the corresponding model of EMI architecture. This paper describes the content of SARI and its application to EMI.SARI is a common architecture with the characteristics of integrated system application, centralized data storage, unified IP-based networks, completed security mechanism and efficient intelligent management, achieves facilities sharing, data sharing, applications integration and services unification which provides a reference for the implementation of EMI.