Abstract: During the rainstorm weather service in Kaijiang County from June 17 to 18, 2021, Kaijiang County Meteorological Bureau issued 3 phases of yellow warning on lightning, 1 phase of yellow warning on rainstorm, 2 phases of orange warning on rainstorm, 2 phases of meteorological information bulletin, 9 phases of rain information bulletin, 17292 people received 48041 messages of decision-making service. The success of this rainstorm forecast service lies in accurate forecast, early warning, strong coordination and timely response.