Huarui2 embedded realtime platform has the advantages of realtime and flexibility. This paper will choose reasonable communication middleware technology by comparison based on the Huarui2 open architecture. Therefore we use DDS to build data distribution system. The project will be equipped transport plugin and hardware structure to support the DDS deployment on the Huarui2 platform. Not only we complete the basic configuration of DDS, but also configure the additional QoS based on the transport mode. Eventually, do implement of DDS test and analysis. By making a comparison among the DDSUDP transport, the DDSRapidIO transport, the DDSRapidIODMA transport, we upgrade and optimize the program, which meets the requirements of highly realtime and reliable and large quality of data.