三门峡水库自１９６０年９月中旬蓄水运用以来，先后经历了两次改建和三种不同运用方式，相应地水库的泥沙淤积也经历了几个不同阶段．本文试图利用非均匀不平衡输沙的理论，对三门峡水库泥沙淤积进行分析研究，找出各个不同时期的冲淤特点和规律，由此，对三门峡水库未来的泥沙冲淤趋势以及如何控制提出预测和建议． Sanmenxia Reservoir has been undergoing two alterations and three different ways of application since the mid-1960s and mid-September 2004, and correspondingly the reservoir sedimentation has gone through several stages. This paper attempts to use the theory of nonuniform unbalanced sediment transport to analyze the sediment deposition in Sanmenxia Reservoir and find out the characteristics and rules of scouring and silting in different periods. Based on this, the trend of sediment deposition and sedimentation in Sanmenxia Reservoir and how to control it Make predictions and suggestions.