Using probability statistics method, the cumulative frequency, load classification and counting of cyclic number of simulation load was accomplished, and get the rain flow statistic histogram. 对疲劳载荷数据进行统计处理,采用概率统计的方法对仿真载荷数据进行统计计数、累积频次的合成、载荷分级与各级循环次数的统计计算,得到了雨流统计直方图。