Abstract: Basing on the observational thunderstorm data of Ewenke Autonomous Banner national ordinary meteorologicalobsetying station fiom 1961 to 2010,and using the data statistics, the thunderstorm climatic characteristics was analyzed in EwenkeAutonomous Banner. The resuhs showed that the mean annual numbers of thunderstorm days were 25.7. The Annual number ofthunderstorm days had a decreasing trend, the thunderstorm days had obviously seasonal change, especially in summer.