China is one of the countries with the most serious meteorological disasters in the world

accounting for more than70% of the country’s economic losses associated with natural disasters. Affected by the monsoon climate

the temporal and spatial distribution of precipitation and temperature in Jiangxi Province are uneven

which leads to severe meteorological disasters

especially flood and drought disasters. In a context of global climate change and economic development

extreme climate events have increased significantly in Jiangxi Province. This paper concludes a countrywide disaster risk management system established by the Jiangxi Meteorological Bureau

which integrates intelligent grid forecasting

risk-based warning tasks and early warning information release. In this paper

a case study is illustrated some of its features through focusing on risk-based flood warning at the catchment scale to discuss the processes and specific benefits of the disaster risk management system throughout Jiangxi. The result showed the countrywide disaster risk management system established by the Jiangxi Meteorological Bureau can reduce casualties and economic losses effectively. The system can improve the accuracy and coverage of early warning message

reduce casualties and economic losses by more than 40%. And it can produce good social service benefits and ensure sustainable economic development. Moreover

it can produce good social and economic benefits and provide reference for other provinces and developing countries threatened and troubled by meteorological disaster risk.