以流域尺度为研究单元,流量、水质同步监测分析了雨强对太湖缓坡丘陵地区农田土壤养分随地表径流迁移的影响.10场降雨试验结果显示,雨强对农田氮、磷径流迁移有巨大影响.总磷、磷酸盐及氨氮EMC值随雨强的增强而增大;小降雨强度条件下,总氮、硝氮EMC值随雨强的增强而增大,强降雨条件下,其EMC值与雨强呈负相关.小雨、中雨、大雨及暴雨条件下,总氮及总磷的SMA值依次为1.91、311.83、127.65、731.69g/hm2及0.04、7.77、2.99、32.02g/hm2,与雨强表现出正相关.硝氮及氨氮是氮素迁移的主要类型,且主要是溶解态迁移.磷酸盐是磷迁移的主要形态.小降雨强度下,磷以溶解态迁移为主,随着雨强的增强,颗粒态磷迁移量逐渐增加,当雨强达到暴雨时,磷主要是颗粒态迁移.次降雨量、小时最大雨强、平均雨强及降雨历时影响因素中,氮、磷迁移量与小时最大雨强及次降雨量显著相关(p<0.01),均表现为正相关. The effect of rainfall intensity on the farmland soil nutrient transfer with surface runoff in the gentle slope area of ​​Taihu Lake was analyzed by simultaneous monitoring of the flow field and water quality based on the basin scale.The results of the 10 rainfall tests showed that the rainfall intensity had a great impact on the runoff of nitrogen and phosphorus in the farmland . The EMC value of total phosphorus, phosphate and ammonia nitrogen increased with the increase of rainfall intensity. Under the condition of small rainfall intensity, the EMC value of total nitrogen and nitrate nitrogen increased with the increase of rainfall intensity. Under the condition of heavy rainfall, And the rain intensity was negatively correlated.The values ​​of total nitrogen and total phosphorus SMA were 1.91,311.83,127.65,731.69g / hm2 and 0.04,7.77,2.99,32.02g / hm2 under the conditions of light rain, moderate rain, heavy rain and rainstorm respectively, Nitrogen and ammonia nitrogen are the main types of nitrogen migration and mainly migrate in dissolved state.Phosphate is the main form of phosphorus migration.With rainfall intensity decreasing, When the rain intensity reaches heavy rain, the phosphorus is mainly in the state of particle migration. Among the influencing factors of rainfall, the maximum hourly rainfall intensity, the average rainfall intensity and the rainfall duration, the migration of nitrogen and phosphorus The maximum rainfall intensity and sub-rainfall are significant in the same period (P <0.01), all showed a positive correlation.