The impact of elevation on lightning current parameters could not be analyzed in Yunnan Province due to the lack of elevation data in thunderbolt information obtained by lightning location system. In this paper, lightning location system and Global Mapper analysis software were used to investigate the relationship between lightning current parameters and elevation. Based on the elevation data in thunderbolt place obtained by advanced spaceborne thermal emission and reflection global digital elevation model(ASTER GDEM), the relations between elevation and lightning peak current, return stroke times, cloud-to-ground flash density or positive lightning proportion in thunderbolt were analyzed. The research presents a law of lighting parameters and elevation, which could provide references for power grid design and lightning protection alteration. Location System, Global Mapper analysis software and the ASTER GDEM, which provides the foundation of the power grid design and the measures of lightning protections.