Abstract: This study analyzes the occurrence and early warning of rainstorm disasters in China. It also analyzes the ways of communication of meteorological early warning information in detail, especially about early warning information of rainstorm disaster. In addition, this study also proposes some strategies for social management. The results show that the frequency of rainstorm disasters in China keeps increasing in recent years, which have caused heavy casualties and economic losses in China. The effective ways to improve the accuracy of early warning information of rainstorm disaster are to strengthen the monitoring capability of rainstorm disaster, conduct more researches of rainstorm, and improve the operational prediction and early warning of rainstorm disaster. Weather situation is the most important meteorological information needed by the public, particularly for the next 3-day. Mobile app has become the most frequently used communication way of meteorological service for the public for the last decade. The public has also paid more attention to obtaining meteorological early warning information through various ways. The rapid release is the key strategy to improve the effective coverage of early warning information. In order to spread the early warning information to the managers at all levels and the public in the shortest time, we must make full use of some new technologies and build an integrated release platform of early warning information based on the "cloud + end" architecture. In this way, the "one click" release and multi-way dissemination of early warning information can be realized. In addition, the monitoring and management of the whole process of early warning can be achieved. Finally, we conclude that the management strategies of early warning information of rainstorm disaster must include information dissemination, timely feedback, and simultaneous emergency actions