Abstract: With the problems caused by more and more complex monitoring system structures while radio monitoring becomes grid and intelligent, the authors propose one solution for the radio monitoring system design and implementation based on software bus. The software bus of the radio monitoring system is realized through different kinds of functional middleware related to component technology and software reuse structure, and the designs of the message mechanism and scheduling mechanism on the basis of the unified standard protocol. It is featured as low coupling of modules, good scalability and strong commonality and high producing capacity appear in process customization and function extension of custom modules. It is practical in the national master's test that shows the software bus ensures the performance of complex monitoring task and the organization monitoring in 24 hours. The software bus of radio monitoring system can improve the system performance and has good application value.