本文首先分析了咸水分布区的自然地理条件和水文地质条件 ,然后对研究区的水文地质条件进行了概化 ,建立了相应的地下水质数值模型 ,最后通过地下水模拟软件Visual MODFLOW 3 1对不同的治理方案进行了数值分析。研究结果表明 ,单一的抽水方案对于高浓度咸水的去除非常有效 ,但是低浓度咸水残留量较大 ;而抽水优化方案不但能够同时去除高浓度和低浓度的咸水 ,并且更加彻底和快速。 This paper first analyzes the natural geographical conditions and hydrogeological conditions of the saltwater distribution area, then generalizes the hydrogeological conditions in the study area, and establishes corresponding numerical models of groundwater quality. Finally, the groundwater quality simulation software Visual MODFLOW 3 1 Of the governance program conducted a numerical analysis. The results show that a single pumping scheme is very effective for the removal of high-concentration salt water, but the concentration of salt water with low concentration is larger. The pumping optimization scheme not only can remove both high-concentration and low-concentration saltwater water, but also is more thorough and rapid .