Abstract:A chemical project in Zibo might affect the surrounding groundwater environment during production and operation. In order to protect the karst groundwater resources, the numerical simulation software Visual MODFLOW was adopted to establish the solute transport model, predicting the movement and change of COD solute in groundwater under different conditions. It showed that under the strict implementation of anti-seepage measures, the project construction had little impact on groundwater environment, and the groundwater environment would be threatened under the accident state. The forecast results provide scientific basis for the production, operation and management of enterprises in the later period.