Abstract: This paper introduces the development and application of mobile weather live TV system with the wireless network, based on 3G/4G, wifi, satellite channel, UAV aerial images & videos and so on. The system includes live video return subsystem, which is based on smartphones, and portable mobile broadcast machine. The system supports users making live broadcast with mobile app, or portable mobile broadcast machine. And the users also can realize live broadcast of meteorological disaster emergency in television, mobile phone, internet and other multimedia channels. At last, the paper validates the functions of the system with the real test application.