Abstract: Liangshan is located in the southwest of Sichuan province. Because of the special geographical factors and the monsoon climate,it is the most severe thunderstorm days in the whole province. Based on lightning monitoring data from 2005 to 2014,the temporal and spatial distribution characteristics of lightning density and intensity in Liangshan area are analyzed in this paper. Analysis results,lightning activity in Liangshan area to negative flash based,accounting for change,positive lightning accounted for only 5. 57%; counties and cities of positive and negative lightning frequency difference; lightning density distribution was obvious regional difference,relative higher area mainly distributed from north to south in the Yalong River,the Anning River valley along Mianning,Yuexi,Xide,Xichang,Yanyuan,dechang,huili and county area mainly. 6-September lightning occurs from high incidence area in,lightning accounted for the annual total lightning 86. 53%,June lightning maximum frequent peak,the lightning activities of some county distribution exist certain differences; lightning frequency also exist certain difference; total lightning intensity is mainly concentrated below 5 ~ 30kA,cumulative probability for 86. 14%,of which 5 ~ 20kA lightning intensity probability was the highest and average 76. 24%.