With the continuous development of science technology and economy, the number of automobiles has increased year by year, urban road traffic has become increasingly congested, traffic accidents have occurred frequently, and the emergence of intelligent transportation systems has effectively alleviated traffic pressure and reduced accident rates. This paper designs an intelligent traffic control system based on 5G network. The system includes sensor data acquisition module, 5G communication network transmission module, cloud platform module and lower machine. The test results showed that the system can upload multiple vehicles’ driving state parameters to the cloud platform, and the big data is formed. The cloud platform can decide and control the driving state of multiple vehicles through system of real-time display. Meanwhile, the cloud platform can analysis of big data streams. Finally, the purpose of intelligent transportation system control is achieved. The system provide power for the future unmanned vehicle and the implementation of intelligent transportation system.