Abstract: Accurate inversion of aquifer hydrogeological parameters is directly related to the rationality of hydrogeological condition discrimination, also affects the safety and cost of groundwater control scheme for underground engineering. However, it is difficult to find a fully applicable analytical method to calculate hydrogeological parameters provided by the existing regulations. According to the pumping test data of Kejiwujie Pumping Station in metro Line 4 phase I project built in the floodplain area of Harbin City, the steady well flow Dupuit calculation formula, unsteady flow Theis calculation formula and water level recovery method are used to calculate the permeability coefficient of aquifer in the floodplain area, the result is 35.9~71.3 m/d, and the average value is 54.1 m/d. In addition, the FEFLOW software is used to develop a numerical model and the inversion of hydrogeological parameters is performed, the calculated value is 44.5 m/d. This research shows that the inversion result of hydrogeological parameters is close to the calculated results of various analytic methods, therefore, the reliability of hydrogeological parameters is further verified.