水电站的渗流计算分析是一项复杂而在设计中又极其重要的工作，很难获得符合实际的渗流分析结果。结合阿青水电站的渗流控制分析，全面阐述了水电站渗流分析中熟悉工程概况和水文地质条件，明确分析任务、概化模型、剖分网格、选取材料参数，确定了计算方案和边界条件，整理分析计算结果，进行方案比较，分析了参数敏感性的方法和过程，认为应做好上述每一个环节，对全面把握工程的渗流性状，进行防渗排水体系的方案选择和优化的重要意义。分析表明，河床最大剖面的渗流量不一定比较低坝高剖面的渗流量大，狭窄河谷心墙堆石坝坝体和坝基总的渗流量，也可能比大坝最大剖面的渗流量与坝轴线长度的乘积大。

Seepage analysis of a hydropower station is extremely important in design stage; however realistic results is difficult to obtain for the comlexity of the seepage situation. A comprehensive exposition of the seepage analysis process is given based on Aqing hydropower station. Contents including the familiar with the project overview and hydrogeological conditions, a clear analysis of the task, the model generalization and mesh generation, the selection of material parameters, the selection of computing solutions and the determination of boundary conditions, the result analysis, scheme comparison, parameters sensitivity analysis, are introduced step by step. To well done each step makes great sense to fully understand the real seepage situation in the engineering project and a reasonable design for anti-seepage and drainage system. It is not necessarily that the discharge of the greatest section of the dam will be greater than that of sections at the bank. The total discharge may also greater than the product of the length of the dam axis with the discharge at the greatest dam section.