结合上海污水治理二期工程南线Ａ＃泵站的水力模型试验，对泵站前池流态及流速分布进行了分析研究。提出了原设计方案中存在的问题，在实验结果的基础上提出了相应的改正措施，并对其进行了实验验证。 Combined with the hydraulic model test of the A# pump station on the south line of the second phase of the Shanghai Sewage Treatment Project, the flow pattern and flow velocity distribution in the fore pool of the pumping station were analyzed. The problems existing in the original design proposal are put forward. Based on the experimental results, the corresponding corrective measures are proposed and experimentally verified.