This paper gives a presentation of the water regime characteristic analysis of Saizhu hydropower plant in the Ximahe river basin, explains the impact of Kunming Qingshuihe river water diversion works on runoff at the damsite of Saizhu hydropower plant and its water power utilization analysis, and puts forward the necessary measures to improve water utilization coeffi cient. The whole annual overhaul of the power plant is arranged to be completed in the dry season, the routing equipment maintenance is to be done well, spares and spare parts are properly laid in and the reservoir operation mode is appropriately arranged. The operation practice in the period of 2013 – 2014 shows that the reservoir water utilization coeffi cients of Saizhu hydropower plant are 95% and 84% respectively, which were both signifi cantly improved as compare with the designed value 65.8%.%介绍洗马河流域赛珠水电站水情特性分析，阐述了昆明清水河引水工程对赛珠水电站坝址径流的影响及水能利用分析，对提高水量利用系数提出了相应的措施：电站的全部年度计划检修安排在枯水季完成；做好日常设备消缺维护；合理储备备品备件；全理安排水库运行方式等。经过2013年及2014年的实践，赛珠电站水库水量利用系数分别为95%和84%，两年均比设计值65.8%有较大的提高。
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