Abstract:With the completion of the Beidou system, the application of Beidou short message in the satellite measurement and control field in China is gradually expanding. In order to make full use of Beidou short message bidirectional communication function, good confidentiality, global coverage and other features, a satellites' design method telemetry and telecommand data system based on Beidou short message and CCSDS standard is proposed by referring to XTCE standard of extensible markup language. Firstly, the application status of CCSSDS XTCE and Beidou short message is analyzed. Secondly, considering the capacity limitation of Beidou short message, the format and content of satellites' telemetry and telecommand data transmission are optimized. Then, according to the characteristics of Beidou short message transmission, the encryption communication method is discussed. Finally, in order to ensure the correctness and reliability of telemetry and telecommand data transmission, the methods of continuous data identification and packet loss and retransmission are designed.The results show that the satellites' telemetry and telecommand data system design method combining Beidou short message and CCSDS standard can provide reference for improving satellite design and scientific use.