Nowadays, owing to the rising awareness of environment protection, the government is promoting paperless enterprise and cloud technology, to achieve the green environments. The first challenge that the enterprise must face is the paperless process management. Digitization of the physical documents can reach the goal of paperless, saving the cost of labor and storage space, improving the file lives and the work efficiency and establish the system standard operating procedure. The main contribution of this study is purposed and implemented a highly efficient image document management system. We use n-Tier architecture to design multilayer service system. We can distributed various application services into difference layer to get high flexibility, security availability and lower risks according to application services’ functions and attributes. In the n-Tier business logic layer, we use the SOA(Service-Oriented Architecture) to connect with variety of applications, including the electronic document management, image processing applications, content management service and the web service application service based on Application-to-Services and Object–Oriented-Analysis. Based on the SOA the proposed systems can sustainable expand the application services and combine with business process engine to reach the target of document process automation. We integrate the enterprise content management platform and virtualization technology to provide the efficient hierarchical tree structure of the file management system, and solve image file indexing system problems that cause by growing amount of data, as well as improve the storage performance and storage space usage. Finally we discuss the benefit for enterprise with virtualization technology, such as cost reduction and the scalability of information management system for growing business.