Abstract: Aiming at the problems of poor timeliness and low accuracy of manual aggregation of railway infrastructure dynamic detection data, this paper designed the overall architecture for the scheme of real time aggregation of railway infrastructure dynamic detection data based on 5th generation mobile communication (abbreviated as 5G), expounded the key technologies of the scheme, and introduced the application effect of 5G technology in railway infrastructure detection business. The scheme provids ideas for solving the related problems such as timeliness, standardization and safety in the process of detection data aggregation.