Abstract: With the rapid development of railway informatization and information technology, the railway information system is getting larger and larger, the complexity of the system is increasing, the higher requirements for the operation and maintenance work was put forward. This article expounded the current situation of the operation and maintenance of railway informatization, the trend of construction comprehensive operation management platform, introduced the implementation of integrated railway operation management platform from the aspects of the overall architecture, data architecture and key technologies. The establishment of integrated operation and maintenance management platform is the base of implementing the informationization of the railway "supervision" and "management" and "control" of integrated operation and maintenance, also is the technical support to improve the technology level of the operation and maintenance of railway informatization.