Abstract: With the rapid urbanization, groundwater has been playing a more and more important role. The study on the impact of urbanization upon groundwater recharge is of great significance not only in studying the hydrologic cycle, supply-demand balance and groundwater overexploitation but also in preventing and controlling the deterioration of groundwater quality and in revealing the relationship between overexploitation and water quality deterioration, the two main problems in groundwater environment. The study on the interaction mechanism between urbanization and groundwater constitutes a typical example. In this paper, based on the analysis of the importance of groundwater in water supply of the city as well as the exploitation and utilization of groundwater, the author studied the change of groundwater recharge under the impact of urbanization, and then discussed the impact mechanism of urbanization on groundwater recharge. On such a basis, a frame-figure on the mechanism inducing the increment of groundwater recharge was constructed. The results show:① urbanization results in the increase of groundwater recharge;②the inducing of groundwater from the well-field around the city and surface water by exploitation of groundwater and the importing of new recharge sources that results from the leakage of water-supply and water-discharge systems of the city seem to be the important mechanism that induces the recharge increase of groundwater by urbanization.