文章根据伊洛河黑石关水文站1951-2010年60 a的实测径流资料,对伊洛河径流的年内分配、年际变化、变化趋势等特征进行了分析。结果表明:伊洛河各月径流量年内分配较不均匀,多集中在每年的7-10月。20世纪90年代之后年内分配趋向相对均匀。伊洛河径流多年变化幅度较剧烈,丰枯变化明显,曾出现连续13 a的最长连枯年份,在1951-2010年中呈现明显的减少趋势。 Based on the measured runoff data of Heishiguan Hydrological Station from 1951 to 2010 in the Yiluo River, the paper analyzes the distribution, interannual variation and trend of the Yiluo River runoff in the year. The results showed that the monthly distribution of runoff in the Yiluo River was less uniform throughout the year, mostly in the July-October of each year. Distribution tends to be relatively uniform during the year after the 1990s. The Yiluo River runoff had a more drastic change over many years, with significant changes in abundance and abundance. The longest continuous dry year with a continuous occurrence of 13 years occurred, showing a clear decreasing trend from 1951 to 2010.