黑河地区河流的冰期流量，受气温等诸多因素影响，出现与气温相对应的日变化过程。本文通过对我区水文站冰期日变化资料的整理分析，发现流量日变化规律。按照这些规律，在一日内合理布置流量测次，对指导冰期测验，提高资料精度有一定意义。 The glacial flow in the Heihe River is affected by many factors, such as temperature, and the diurnal change corresponding to the temperature appears. In this paper, we analyzed the diurnal variation data of hydrological stations in our district and found out the daily variation of the flow. According to these rules, the rational arrangement of the flow measurement within one day is of some significance to guide the ice age test and improve the data accuracy.