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The concept of ITIL management process is introduced in this paper. According to actual practices in the scientific research institutions and role-based access control theory, an improved model of ITIL is designed. When used in scientific research institutions, cloud data center operation and maintenance management, the model has achieved good results and provides new ideas for enhancing the level of informatization construction in the scientific research institutions. Introduction The human society is moving towards the information age from the industrialization era, under the background of the rapid development of informationization of scientific research institutions. With big data, cloud computing technology, the construction of scientific research data center has become scientific the inevitable choice for the research institutions of information infrastructure and information technology infrastructure that supports environment construction. How to combine programming characteristics of scientific research institutions and scientific management system with mechanism, to ensure the safety of the data center of the scientific research institutions, operation efficiency, realization of due profits? Ii is a topic worthy of further study. Now, the concept of ITIL management process is introduced in this paper. According to actual practices in the scientific research institutions and role-based access control theory, an improved model of ITIL is designed. When used in scientific research institutions, cloud data center operation and maintenance management, the model has achieved good results and provides new ideas for enhancing the level of informatization construction in the scientific research institutions. ITIL management system ITIL(IT Infrastructure Library) is the international IT service management model, released first by the British government in the 90s of the 20th century. After nearly 20 years of exploration and practice, the model has formed a set of IT service management serving as best guidance in practice. The model is an objective, rigorous, quantitative standards and specifications [1, 2]. The core of ITIL is “service management”, including 10 processes and a management function. Usually according to their functions and service objects, ITIL can divide these processes and functions into two packets: “service supporter" and “service provider"[3]. “Service supporter" process groups include operation and maintenance management platform related to IT, event management, problem management, configuration management, change management, release management, one management functions and five processes; "service providers" process groups include five processes: management service level management, financial management for it services, management ability, IT services and continuous management and availability management. The difference between the traditional IT management mode and the IT service management mode is shown in table 1. 2nd International Conference on Electronics, Network and Computer Engineering (ICENCE 2016) © 2016. The authors Published by Atlantis Press 858 Tab.1. The difference between the traditional IT management mode and the IT service management model Traditional IT management mode IT service management model based on technique based on process Fire brigade forethought react passively react actively centralized operation, independently completed unit distributed operation, appropriate

A Cloud Data Center Operation and Maintenance Management Process for the Research Institution based on Improved ITIL