The precipitation data, from 17 station in sandy area in the mid-Yellow River, of recent 40 years have been used to analyze variational character of the precipitation and its distributing rule.

• 摘要本文采用黄河中游多沙粗沙区具有代表性的17个雨量站的近40年旬降水量资料，分析了其降水量变化的特点和分布规律。