In response to the large number of users simultaneously access the webcast streaming service, streaming media publishing system is essential. In this paper, according to the characteristics of the network broadcasting system, we design and set for network broadcast streaming media publishing system, the system is divided into the Relay of media streaming and the publishing of streaming media.Through adding relay module to Darwin Streaming Server to achieve media streaming relay. Through structuring back-platform management system, front-end platform and terminal platform three parts to achieve streaming media's publishing. Finally, multi-terminal access publishing system to verify the function of the system, achieving the network broadcast media streaming and streaming media's publishing, allowing users to listen to the program more convenient.