The seepage field is an effective form to reflect the spatial and temporal dynamic characte- ristics of groundwater level and migration. The water level red line is an important indicator for strict control of groundwater exploitation. From the aspects such as streamline drawing of groundwater see- page, flow rate calculation, selection of flow field seed point and termination point, and streamline tracking, a visualization algorithm of pore groundwater seepage field is discussed, and a new seed point layout method is designed to characterize the groundwater seepage field. Moreover, the improved EULER method is used to realize the visual expression of the streamline. Then, the spatial differentiation of the groundwater seepage field and the water level red line are merged and superimposed. Based on the groundwater seepage field, the spatial distribution characteristics of groundwater exploitation intensity and over-exploitation degree are revealed from the 2D perspective, the regional scope of groundwater over-limit mining is automatically delineated, which can provide space-assisted decision-making for the rational exploitation of groundwater and the formulation of geological management protection measures.