泥沙问题是关系到三峡工程长期利用和发挥最大综合效益的关键技术问题，从三峡工程开始论证至今，对三峡的泥沙问题进行了持续、深入、全面的研究。近年来，三峡水库上游的来沙量大幅减少，水库泥沙问题好于预期。根据实测水文资料，分析了三峡水库运行以来入库水沙及库区淤积的变化，根据10月份来水形势，提出三峡水库提前蓄水的必要性；在总结相关研究成果及2010年三峡水库汛期中小洪水调度实践的基础上，从泥沙角度探讨了三峡水库优化运行的可行性，提出在三峡水库试验蓄水期，可将汛期运行水位提升至150 m并根据实际情况开展中小洪水调度，为今后的运行调度积累经验。

Sedimentation is a crucial problem which influences the comprehensive benefits and long term operation of Three Gorges Project. In recent years, sediment from the upstream to the Three Gorges Reservoir has decreased remarkably, which indicates that the sedimentation condition is better than that of anticipation. On the basis of measured hydrological data, the variations of incoming flow and sediment and deposition in Three Gorges Reservoir area are analyzed. It's put forward that, in view of the inflow in October, reservoir impoundment in advance is necessary. Furthermore, the feasibility of the reservoir's optimum operation is discussed based on relative results and medium and small flood control practice in the flood season of 2010. It is presented that the water level could raise to 150m in flood season during the impoundment, and the medium and small flood could be regulated according to reality, which can accumulate experience for future operation.