Abstract: During the foundation pit dewatering process, groundwater recharge is taken as the pit water level reduced in pit in order to protect the safety of the environment to ensure that the water level drop smaller within a certain area outside the pit.The grand international financial center is located at the junction of three subway, environmental protection is higher.Groundwater recharge technology combined with dewatering can control dewatering sphere of influence, by the numerical method to calculate and analysis of the recharge, and successfully applied in practical engineering.