In order to solve the shortcomings of the meteorological weather forecast video conference system in free interaction, application scenarios and automatic control, a new generation of video conference system is designed and constructed. Based on cloud computing and virtualization technology, the system has built a cloud video conference platform for private cloud deployment, which makes up for the shortcomings of weather conference in Internet access. It expands the application of weather conference in official business trips, cross-departmental linkage and other scenarios. At the same time, by applying distributed technology to the system’s main control centre, the large capacity signal interaction and transmission based on IP encoding and decoding is realized. Compared with the original system, the interaction ability is improved by more than 15 times. The introduction of automatic conference control technology improves conference management and scheduling ability and significantly reduces operational complexity. Since the system was officially launched in March 2019, it has played a huge role in the service guarantee of major events such as the 70th anniversary of the National Day and in the service of meteorological departments in combating COVID-19.