Through the atmospheric electric field data of 17 typical thunderstorm processes around Shenzhen recorded from June to Septemberof 2012,in combination with the lightning position data,we found very importantrelationship between the electrified variation and lightning strike occurrence.The amplitude of the electric field increases quickly accompanied bydithering when the thunderstorm cloud comes close to field instrument stations.The relationship between the electric field and the lightning stroke occurrence is 0-1,that is,when the electric field reaches and maintains a certain threshold for some time,the possibility of lightning is great in protection zone(within 10 km from electricfield station).Therefore,according to the characteristics of the atmospheric electric field waveform,predictors highly correlated with lightning are chosen,and a forecasting equation is established using multiple regression techniques.According to the equation,when the atmospheric electric field reachesthe threshold of 0.86 kV/m and maintains that value for a continuing of 10.73 minutes accompanied by electric field dithering,it can bepredicted that the lightning will occur within the range of 10 km from the station,with accuracy as high as 53%.