Abstract: In order to meet the needs of knowledge storage management, sharing and utilization in the railway industry, this paper designed and implemented a knowledge storage and sharing communication system for railway industry institutions based on the open-source software Dspace. The paper utilized key technologies such as non-programmatic dynamic customization extension of metadata, flexible definition of knowledge organization based on composite patterns, and fine-grained knowledge permission management to implement functions such as multi-source heterogeneous data management, knowledge organization, and statistical analysis. The construction of this system provides an opportunity and platform for collaboration and communication among relevant institutions in the railway industry, which is of positive significance for improving institutional innovation capabilities and research and development efficiency.