This paper presents oneM2M standard platform architecture design and its implementation which supports real-time data delivery for UAV management system. Recently, a UAV swarm service is getting a lot of attention since compared to the single UAV, a UAV swarm can reduce time of executing various mission activities such as remote sensing, surveillance, search and rescue. However, to support those UAV swarm service scenarios, UAV management system should be involved and moreover, the system requires a real-time data delivery feature due to the high cruise speed of the UAVs and the low-latency constraints of the command and control message. Considering oneM2M message flows, we have designed the procedure which enables real-time data delivery in oneM2M platform and experimental results show that our system improves end-to-end delay performance in various network environments.