Abstract: Based on the daily precipitation data from 111 meteorological stations between 1961 and 2018, the spatial-temporal variation characteristics of the beginning and ending date of rainstorm and rainstorm days in Henan Province were analyzed in this study using the mathematical statistics methods that included climate tendency rate, correlation analysis and multiple stepwise regression. The results showed as follows: (1)The average beginning date of rainstorm was from May 19 to July 16 and the earliest date of rainstorm was from January 28 to May 25 in Henan Province. Both of them were significantly delayed from south to north with the increase of latitude and from plain to mountains with the increase of altitude, but from west to east the date were significantly advanced due to the increase of longitude. (2) The average ending date of rainstorm was from August 5 to August 30 and latest ending date of rainstorm was from September 9 to November 29. Both of them were significantly advanced from south to north and delayed from west to east, the latest ending dates of rainstorm were significantly advanced from plain to mountains. (3)The average rainstorm days in Henan Province were 0.7-4.3 days, the days were significantly decreased from south to north and from plain to mountains and significantly increased from west to east. (4) As a whole, both the average beginning and ending dates of rainstorm in Henan Province showed an advanced trend, and the climate tendency rates were 1.2 d·(10 a)^-1 and 0.2 d·(10 a)^-1 , respectively; the average rainstorm days varied with year, especially after 2000, it presented an obvious decreasing trend; the climate tendency rate of beginning date, ending date and rainstorm days in each station were between -9.3-9.3 d· (10 a)^-1, -2.4-5.4 d· (10 a)^-1 and -3.0-3.2 d· (10 a)^-1, but only a few stations showed obvious trends.