Groundwater recharge can be divided into environmental control type and water resources protection type according to its application purpose in the field of deep foundation pit engineering. A large number of experimental and theoretical researches have been performed for the purpose of environmental control. In contrast, few studies aimed at the protection of water resources. In this paper, recharge tests were carried out based on the dewatering engineering from the Fengyiqiao South Station to the terminal of Beijing Metro. During the test, the average daily recharge amount reached 94 627.1 m3, which was equal to the pumping amount, and it proved that it is feasible to carry out water resources protection recharge in thick pebble phreatic aquifer. Tests results also showed that: the design recharge amount of single well should base on field test. The maximum natural recharge amount of single well calculated by Dupuit theory was 18 285 m3/d, which was much larger than the field test value of 1 920 m3/d. When the flow rate of pumping was the same with recharge, the groundwater level of foundation pit dropped by 7 m, while that of recharge tank rose by 6 m, so the capacity of receiving recharge is higher than that of pumping water for this aquifer. The recharge water mainly flowed into the foundation pit area. As a result, the groundwater level of foundation pit near the recharge pool was 2.5~3.5 m higher than the other side, and the flowing yield in foundation pit was 30.9% higher than that before the recharge.