Underground water control structure close to subway group foundation pit

The invention provides an underground water control structure of a foundation pit close to a subway group. The underground water control structure comprises a waterproof curtain structure, a foundation pit close to the subway, a foundation pit far away from the subway, an observation well, a precipitation well and a recharge well. The near subway foundation pit is arranged near a subway station or a subway interval tunnel; waterproof curtain structures are respectively arranged on the inner sides of the near subway foundation pit and the far subway foundation pit; the observation wells are arranged in the near subway foundation pit, the far subway foundation pit, the near subway foundation pit and the far subway foundation pit; the dewatering wells are arranged in the near subway foundation pit and the far subway foundation pit; and the recharge wells are arranged outside the near subway foundation pit and the far subway foundation pit. According to the underground water control structure for the foundation p