Abstract: In order to actively promote the research on the application of Digital Yuan (e-CNY) in the railway scene, this paper combined the characteristics of e-CNY, analyzed the demand of various railway businesses for e-CNY payment and management, and designed a railway e-CNY management system. The system implemented transaction processing, digital wallet management, smart contract management and other functions. The paper focused on the specific implementation process of four transaction modes of transaction processing, which was of positive significance for accelerating the application of e-CNY in railway scenarios.