Abstract: Recently, the field of railway engineering construction has developed rapidly in China. In order to improve the quality and efficiency of railway supervision and management, a unified supervision and management platform is needed for collaborative management. The railway engineering supervision and management system based on cloud platform, through the sharing of cloud computing and engineering management platform, implemented the management of quality and safety supervision data in the process of railway construction. At present, relying on China railway master data center, the system provided services for the Engineering Quality Supervision and Management Administration and 18 supervision stations of the whole railway, collected more than 70 000 field data, issued system management measures, formed quality system evaluation and quantification mechanism, and provided important technical supplement for railway supervision work.