Abstract: To solve the problems of centralized traffic control (CTC) system being unable to obtain shunting operation plan data and still using manual shunting route arrangement, this paper constructed a shunting data interaction service platform based on the application of existing CTC system and the station Synthesized Management Information System (SMIS) , studied the overall architecture, functional applications and the process design supported by the platform. Through key technologies such as data acquisition and processing based on edge computing and data security protection of shunting operation plan, it was effectively implemented the functions of data acquisition, data distribution, data integration and platform monitoring of shunting operation plan. The shunting data interaction service platform has been put into use at some stations of China Railway Wuhan Group Co. Ltd., and significantly improved the work efficiency of operators and ensured the accuracy and safety of shunting operation route arrangement.