Based on ARP project construction, the paper simply introduces the complex management information system which aimed at CAS' two layers of management. The system informationizes service, research, management, and converged humanity, finance, material, items and many other resource, can support decision making and analysis of top leaders. ARP system contains ten business subsystems and three supporting platforms. The papers take one of subsystems construction for example-international cooperation construction. In order to decrease response time because of requirements change, development method based on agile platform is presented. The effect of application shows that the work efficiency is improved greatly and the level of management information is promoted.