鉴于长江流域水情、工程条件的变化，长江流域大型水电工程的水量调度已成为未来流域水资源管理的重要组成部分。对大型水电工程水量调度的需要进行了分析，介绍了长江流域目前开展水量调度工作的现状和存在的问题，分析了各干支流大型水利水电工程参与水量调度的能力。在此基础上，初步探讨了长江流域实施水量调度的总体框架，包括调度目标与原则、工程筛选标准、调度内容、管理制度形式和管理支撑条件。研究结论将为长江流域未来实施水量统一调度管理提供参考。

In light of the changes of water resources and water engineering conditions, water quantity operation of large-sized reservoirs has become an important part of water resources management in the Yangtze River basin. In this paper, the demand for water quantity operation of large-sized reservoirs is put forward, and the status quo of the operating work and existing problems are presented. Moreover, the capacity of water quantity operation of large  sized reservoirs on different tributaries and mainstream sections are also evaluated. Based on the above understanding, an overall framework of reservoir operation for water quantity is proposed. The framework includes operation targets and principles, reservoir selection criteria, operation contents, management system and supporting conditions. The research will provide decision making reference for the future integrated operation of water quantity of large sized reservoirs in the Yangtze River basin.