In 2019，the construction of China’s broadband mobile network was keeping a steady growth. The quality of network was constantly improving. The mobile traffic flow was growing rapidly. In the first year of 5G commercialization，many countries have been accelerating the development of 5G. In China，many provinces and cities had issued corresponding policies to support the development of 5G industry，network and application. China is leading 5G industry development in several fields. The 5G commercial progress in China is in the first tier of the world. 5G has obtained good achievements in both personal and vertical industry applications in China. In 2020，the construction of 5G network will play an essential role in “new infrastructure construction”，and mobile users will transfer to 5G more quickly，stimulating the growth of traffic flow and providing a strong momentum for steady economic growth.