Abstract: With the rapid development of informatization, the assessment methods and contents of informatization are changing constantly. Starting from the angle of the informatization evaluation index, and the present situation of railway enterprise informatization, this paper analyzed and drew lessons from the informatization evaluation index issued by different industries and enterprises such as the National Information Center, the National Development and Reform Commission, and analyzed the development trend of enterprise information assessment from them. The evaluation principles and methods of reference for railway enterprises were refined, and finally the evaluation index system of railway information was proposed. The system covered three aspects:business application requirement, technology platform requirement and support system requirement. The design of index system carried out from two perspectives:basic index and efficiency index. In the basic index system, it was extracted the evaluation index from the "public technology platform planning" and "guarantee planning system". In the efficiency index system, it was extracted the indicators of strategic decision-making, resource management, railway transportation, operation and development, railway construction and integrated business coordination. This set of indicators system coordinates with the future development strategy of enterprises, implements the key development contents of enterprises in the future in specific assessment indicators, and makes the informationization strategy of enterprises feasible.