Abstract: Cloud platform technologies are conducive to the rapid development and business operation of railway. Taking China Railway Beijing Group Co. Ltd. (hereinafter referred to as Beijing Administration Group Company) as an example, this paper studied the overall design scheme of railway administration cloud platform construction, and adopted technologies such as resource pool virtualization and network isolation to build the overall architecture of cloud platform. The scheme can integrate system resources, reduce the cost of information system and improve the security mechanism. It will become an important part of the future information development strategy of Beijing Administration Group Company.