The research on the flow field characteristics in oxidation ditch is important to the oxidation ditches' treatment theory, and oxidation ditches' design and improvement. Computational fluid dynamics(CFD) is an important tool to simulate the oxidation ditch. The process for simulation by using the CFD and the research progress about the numerical simulation for the flow field in the oxidation ditch are reviewed here in detail, and some problems in the CFD simulation are summarized. In addition, the future research directions are proposed.%氧化沟流场特性的研究对氧化沟工艺废水处理理论、氧化沟工艺的设计与改良有着十分重要的意义。计算流体动力学（CVD）是对氧化沟进行数值模拟的重要手段。综述了CFD概况及氧化沟中流体特性数值模拟的研究进展，总结了目前CFD模拟氧化沟流体特性中存在的问题，并提出了进一步的研究方向。
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