At the conference, there are not only 5G+government cases, but also application cases in the field of 5G+intelligent manufacturing. COMAC, not only work communication, discussion, and mobile meeting on Blue Letter, but also develop exclusive application through Blue Letter unified application platform, realizing real-time collection and transmission of data on the mobile side, and building a big data platform for big airplanes. It is reported that Commercial Aviation plans to put all the data collection on the blue letter to complete, each test flight data related personnel can see in real time from the cell phone. More than 300,000 data per second will be the source of the realization of aviation manufacturing big data applications.