Abstract:The traditional communication technology has poor clarity of communication signal reception on spacecraft monitoring system, and the data communication efficiency of monitoring system is low. Based on the above problems, a new spacecraft monitoring system data communication technology based on Beidou satellite is studied. Collection, data command search, data communication collection to achieve spacecraft monitoring system communication data collection, based on information language representation, spacecraft real-time data transmission control, vector computing and accuracy analysis to determine spacecraft monitoring system communication data. The experimental results show that the communication technology of the data communication technology of the spacecraft monitoring system based on Beidou satellite has high clearing rate and good data communication efficiency of the monitoring system.