Abstract: On the basis of analysing the reason of numerical model construction of groundwater flow in a large-scale area,the paper emphasized on discussion of the current situation at home and abroad as follows:groundwater resources evaluation,determination of hydrogeological parameters,land subsidence,solute transport,seawater intrusion,salinization,risk assessment,groundwater management,the united exploitation and utilization stage of the underground and surface water,and so on.Based on this result,some problems that exist in the process of sensitivity analysis,model foundation in karst fractured rock mass,model foundation of solute transport based on numerical model of groundwater flow,workload of modeling of numerical model of groundwater flow are analyzed and summarized;Development trend of numerical model of groundwater flow in a large-scale area is prospected in the following aspects such as research scope,simulation technology and method,and coupling with other model.