The Meteorological Disasters Sharing System (MDSS) is designed to collect, report, transfer, process, apply, and manage the data of both real time and historical meteorological disasters. The system is divided into three layers: collect transmission, data logic, and application service. It consists of five components: disaster reporting client, data transmission subsystem, disaster pre processing and storage subsystem, meteorological disaster data sharing website, and comprehensive meteorological disaster database. The relevant key technologies, including the collection standards, quality control, and spatial analysis of disaster data, are discussed. The operational applications in national meteorological departments show that the system has achieved the collection, processing, analysis and sharing of meteorological disaster data (drought, torrential rains, typhoons, high temperature, low temperature, etc.) to meet the demands of severe weather forecasting and services. It will also play an important role in guiding meteorological departments at all levels to build a meteorological disasters sharing system.